1 . Dragons, a famous imaginary beast born from fantasy, are often present in stories in the west and east. In both cultures, dragons are generally recognized as massive creatures capable of flight. They have great power and are often associated with magical abilities. However, due to their different cultural roots and images, there exist significant differences in the way dragons are regarded in the west and east, particularly in China.

Chinese dragons most resemble snakes, and have four claws and no wings. They often have features of other animals, including carp, tigers, and eagles. In the contrast, Western dragons look like huge lizards with big claws and large bat-like wings, and are often shown with spines or rough scales.

In traditional Chinese culture, a dragon is a symbol of luck, power and high status. They can cause weather changes and bring rainfall to the fields to ensure rich harvests. They are considered divine (神圣的) creatures, which hold an important position as the head of the four spirits. Therefore, to symbolize their power, ancient Chinese emperors decorated their clothes with dragon patterns. These clothes are known as dragon robes. Many Chinese view the dragon as a national symbol, proudly referring to themselves as “descendants of the dragon”. In the west, however, a dragon symbolizes an evil creature that spreads violence and terror throughout the land. They are believed to be transformed by the devil, with the ability to breathe fire or spit poison. Many western tales show dragons being defeated and killed to protect people from danger.

Today, dragons continue to evolve, exceeding traditional boundaries and finding new significance in global culture. They are no longer associated with evil or good, but rather as complex characters with their own unique personalities and motivations. For example, Toothless from How to Train Your Dragon begins as a dangerous dragon but evolves into a misunderstood being with love and compassion. This challenges the idea of dragons as naturally evil, presenting them as complex beings with emotions and motivations.

4 . Moving around Bogota can be a bit of a Jekyll-or-Hyde experience. On the one hand, the city is infamous (声名狼藉的)for having the world’s worst traffic. Yet, on the other, its cycling infrastructure is considered a good model of sustainable urban mobility, according to the Copenhagenize Index, which ranks bike-friendly cities. The Colombian capital generated a now-international movement in the 1970s called Ciclovia, which sees 1.5 million people cycle across 128km of car-free streets each Sunday morning.

So, when the pandemic reached its shores in mid-March, Bogota Mayor Claudia Lopez, an avid cyclist herself, introduced one of the world’s first plans to encourage bike travel, using traffic cones to create 76 km of temporary lanes.

“Everyone started using a bicycle, and they already knew how to get around on one because we have this bike culture thanks to the Ciclovia,” says Carlos Pardo, a local cycling advocate and senior advisor at the New Urban Mobility Alliance. Pardo got involved at the beginning of the pandemic by partnering with a local bikeshare company to provide 400 free e-bikes to health workers. Now, he’s busy persuading the public that the government’s new bike lanes should become permanent fixture (固定设施).

“Some drivers say, ‘you took away our lane’, but we’re saying, we took one car lane and made a two-lane bidirectional bike lane,” he explains. “So, you’re duplicating the effectiveness of the space, and moving more people per hour, per direction.”

Biking has enjoyed a renaissance (复兴) around the world as urban citizens avoid public transport for the relative safety of a two-wheeled commute. Now, many advocates like Pardo are working with local governments in the hope of turning these pandemic-response measures into lasting changes—ones that are more plausible now than ever after lockdowns provided an unprecedented (空前的)opportunities to fast-track infrastructure trials. The results of these urban planning experiments could not only radically shape the way we commute across global cities, but also make them more adaptable to future shocks.

6 . In recent years, advancements in artificial intelligence (AI) have brought both excitement and concerns to various fields. One area where AI is making a profound impact is the medical field, particularly in the domain of diagnostics.

Al-powered diagnostic systems leverage deep learning algorithms to analyze medical images, such as X-rays, MRIs, and CT scans. These algorithms can detect subtle patterns and anomalies that might be missed by human radiologists, potentially leading to earlier and more accurate diagnoses.

However, the integration of AI in medical diagnostics raises complex ethical questions. For instance, who should be held responsible if an AI system misdiagnoses a patient’s condition? Should AI algorithms be treated as medical professionals, with legal and liability implications? These questions become even more intricate when considering that AI systems learn from vast datasets of medical information, which might contain biases or inaccuracies.

Furthermore, the adoption of AI diagnostics could impact the role of healthcare professionals. Some argue that AI could enhance doctors’ capabilities by providing them with additional insights, while others fear that it might replace human expertise, leading to job losses and a potential decrease in the quality of patient care. Despite these challenges, proponents of AI diagnostics emphasize its potential to improve healthcare accessibility, especially in underserved regions where there is a shortage of skilled medical professionals. Al-powered diagnostics could provide preliminary assessments and recommendations, helping to bridge the gap between patients and healthcare providers.

9 . Peng Jingxuan, a 26-year-old Chinese girl, is now studying in a music university in Paris. While learning abroad, she is also working at spreading traditional Chinese culture to the world. She can often be found on French streets, wearing a silk Han Dynasty-style dress and playing the guzheng to passers-by.

Born in 1995, Peng began to learn the guzheng when she was seven years old. After arriving in France in late 2017, she saw many people do street performances, but few of them knew about Chinese music. So she decided to play the guzheng on the streets.

Peng made her first performance in front of a theater in October, 2018. “I was very nervous at that time, but a lot of people said they enjoyed my performance,” Peng said. Then she started to perform during weekends and holidays. After being asked plenty of times by local people about the guzheng, Peng now carries a book that explains the instrument to foreigners. Later, she posted her first video of playing the guzheng online and it spread quickly. From then on, Peng has posted many videos of her street performances. The videos have got many likes and made her a very popular guzheng artist. She has millions of fans on the Internet now.

More and more people show great interest in the guzheng after watching Peng’s performances. “People come to me and praise me for the beauty of the instrument and the music. Every time they ask me which country the guzheng comes from, I am very happy to tell them it’s from China.” Peng feels she has more responsibility to spread traditional culture. “What is national is universal. I hope to play a bigger role in making Chinese music known by the world.” said Peng.

10 . Some people believe that humans could live on the planet Mars by the year 2100. Our own planet, the Earth, is becoming more and more crowded and polluted. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.

At present, our spacecraft are too slow to carry large numbers of passengers to Mars — it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel really fast, so the journey to Mars might be quite uncomfortable. Many people would feel ill.

Humans can’t live without water, air or food. So far, nobody knows whether there would be enough water or air on Mars for people. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills (药片) and would not be so tasty.

Compared with life on the earth, life on Mars would be better in some ways. People would have more space. They might live in houses with huge comfortable rooms. Also, robots would do a lot of their work so that they could have more time to relax. There would probably be no schools on Mars. Every student would study at online schools with “e-teachers”.

Life on Mars would be interesting and challenging. However, it may take hundred or years to make it true. So the most important thing we need to do now is to protect our beautiful blue planet — the Earth!