From the tropical paradise of United States' Miami to South China's innovative(创新的)city Shenzhen, The Lonely Planet released a list of top 10 cities which are worth visiting in 2019. It covers a mix of well-known and less-known destinations. Those places include second place Shenzhen, China； Novi Sad, Serbia in third place; Miami, Florida in fourth place, and Kathmandu, Nepal munding out the top five. Let's have a brief look at some of these attractive places.

Copenhagen, Denmark

With its modern design, 15 Michelin-starred restaurants and highly bike-friendly culture, it is not surprising that Denmark's capital has topped Lonely Plane’s top 10 cities list.

Copenhagen's street food scene is developing fast in Refshaleoen, a former industrial area with a food and craft market, Reffen.

Novi Sad, Serbia

While Novi Sad is not as noted as the capital of Belgrade, it's much more fashionable. It's home to the country's annual EXIT! Festival, which is held each July at the 18th century-era Petrovaradin Fortress.

The festival contributes to a vibrant music and arts scene and a youthful atmosphere. Next year, 2019*8 European Youth Capital will be held in Novi Sad. It may be a practice run for 2021, when the city will observe the important title of European Capital of Culture.

Kathmandu, Nepal

Three years after it was struck by a destructive earthquake, Kathmandu is welcoming visitors to a city which is much quieter, by design.

"With cars banned from the historic center and motor horns banned across the Kathmandu Valley, it's much quieter than it used to be in the past. Hall figures out.

It will also host the South Asian Games in 2019.

Solar energy for your home is coming. It can help you as a single home owner. It can help the whole country as well. Whether or not solar energy can save your money depends on many things. Where you live is one factor. The type of home you have is another. Things like insulation(隔热材料) add to energy costs, and the type of system you buy are added factors.

Using it can help save our precious fuel. As you know, our supplies of oil and gas are very limited. There is just not enough on hand to meet all our future energy needs. And when Mother Nature says that's all. The only way we can delay hearing those words is by starting to save energy now and by using other sources, like the sun.

We won't have to worry about the sun running out of energy for another several billion years or so. Besides being an endless source of energy, the use of the sun has other advantages as well. The sun doesn't offer as many problems as other energy sources. For example, fossil fuel plants add to already high pollution levels. With solar energy, we will still need sources of energy, but we won't need as much. That means we can cut down on our pollution problems.

With all these good points, why don't we use more solar power? There are many reasons for this. The biggest reason is money. Decades ago, it was just not practical for a home owner to put in a solar unit. There were cheaper sources of energy.

All that is changing now. Solar costs are starting to equal the costs of oil and electricity.   Experts say that gas, oil and electricity prices will continue to rise. The demand for electricity is increasing rapidly. But new power plants will use more gas, oil or coal. Already in some places the supply of electricity is being rationed(定量配给). Solar energy is now in its infancy. It could soon grow to become a major part of our nation's energy supply.

Traditional Chinese Medicine(TCM) has been greatly contributing to the treatment of the COVID-19, which changed the altitude of the western world to it to some extent. However, in the past, foreigners knew little about it. According to a government report, although TCM has been introduced into 183 countries and regions around the world, their understanding of TCM may be limited to acupuncture(针灸), cupping and massage(按摩) .For instance, the purple, injury-like marks left on a U. S. famous swimmers back from cupping to relax his muscles and reduce pain became the center of attention during the Rio Olympics in 2016.

In fact, Chinese herbs(药草) play a more important role in curing diseases and keeping the body in good condition in the TCM treatment system than physical treatment. Therefore, it is disappointing to know that although 103 world Health Organization member countries have given approval to the practice of acupuncture, not many recognize Chinese herbal medicine. TCM is much less popular than Western medicine partly due to the slow development of Chinese herbs.

Herbs can be made into pills, powder and soup. The kind of herbs used, their quality, quantity and the processing together determine the effectiveness of the prescription (处方). Compared with Western medicine, which has standardized drug production processes and treatment methods, TCM lacks standardization. The chemical composition and functions of its medicine are still unclear and their effects are unstable. Fortunately, standardization has improved in recent decades and a number of factories are increasingly producing patented TCM drugs.

Another reason why TCM prescription drugs have developed slowly is that it lacks creativity. While Western medicine-making companies come up with new products every year, TCM drug producers tend to make medicine according to prescriptions handed down from the past. That Chinese chemist Tu Yoyo won the 2015 Nobel Prize in Physiology or Medicine for her research into malaria(痢疾) treatment may drive creativity to some extent in China's TCM industry.

However, Rome was not built in a day. The current situation cannot be changed within a short time.

The following is excerpted(节选) from the speech given by the Queen of the UK on April 5th, 2020. “I am speaking to you at what I know is an increasingly challenging time. A time of disruption in the life of our country: a disruption that has brought grief to some, financial difficulties to many, and enormous changes to the daily lives of us all.”

I want to thank everyone on the NHS(国家医疗服务体系) front line, as well as care workers and those carrying out essential roles, who selflessly continue their day-to-day duties outside the home in support of us all. I am sure the nation will join me in assuring you that what you do is appreciated and every hour of your hard work brings us closer to a return to more normal times.

I also want to thank those of you who are staying at home, thereby helping to protect the vulnerable (弱势群体) and sparing many families the pain already felt by those who have lost loved ones. Together we are tackling this disease, and I want to reassure(使安心) you that if we remain united and resolute, then we will overcome it.

I hope in the years to come everyone will be able to take pride in how they responded to this challenge. And those who come after us will say the Britons of this generation were as strong as any. That the attributes (标志) of self-discipline, of quiet good-humored resolve and of fellow-feeling still characterise this country. The pride in who we are is not a part of our past, it defines our present and our future.

The moments when the United Kingdom has come together to applaud its care and essential workers will be remembered as an expression of our national spirit; and its symbol will be the rainbows drawn by children."

"While we have faced challenges before, this one is different. This time we join with all nations across the globe in a common endeavour(竭力) ,using the great advances of science and our instinctive compassion to heal. We will succeed and that success will belong to every one of us.

We should take comfort that while we may have more still to endure(忍受) ,better days will return: we will be with our friends again;

We will be with our families again;

We will meet again.

But for now, I send my thanks and warmest good wishes to you all.