【推荐2】There you are in your favorite clothing store. You don’t really need to buy anything, but everything is so cheap and fashion! Before you know it, you leave the store with bags and bags of new clothes. On the surface, this doesn’t seem so bad. However, there are a lot of hidden costs behind the cheap price tags.

To be honest, the fashion industry is terrible for the planet. Not only does it use up a lot of resources, but it also heavily pollutes the environment with chemicals and unwanted waste.

Fashion is one of the least sustainable (可持续发展的) industries on the planet, commented Michael Stanley-Jones, a program management officer with the United Nations Environment Program. “We’ve all become our own waste managers, storing fashion waste in our closets, “ he noted.

It doesn’t just take up space in our closets, though. It also ends up in landfills (垃圾场) , too. In fact, three out of every five clothes end up either being fired or sent to landfills.

But, thankfully, the fashion trends are changing.

People are thinking about what changes they can make to become sustainable, therefore, shopping secondhand has become an increasingly popular and eco-friendly choice.

According to a survey, the secondhand market is predicted to reach $80 billion (about 518 billion yuan) by 2029. And, although fast fashion will continue to grow 20 percent over the next 10 years, secondhand fashion is expected to grow an unbelievable 185 percent in that same amount of time.

Secondhand has become more socially acceptable and, for some, cool. Thrifting is now popular on TikTok. “The only true sustainable way to shop is to not shop at all. ” Michael said, “Unless you’re buying clothes that exist.”

【推荐3】Many of us have had the same “pleasant surprise”. After you mark a song as a favorite on a music app(程序), it suggests songs of the same kind to listen to.     1    

Big data(数据) is a lot of sets of information that are put together so they can be used by a computer program. It can have different kinds of information from many sources(来源), such as information that comes from schools, social media sites, companies, and governments.     2     Another set can have what they like, where they go to school, and how much time they spend on the computer.

    3     The government uses it to understand how many people travel on buses or trains. The information is then used to make bus or train systems better. Companies use big data, too. It helps them understand who buys their products. For example, one company uses weather data to see when people eat the most ice-cream.

Big data can be used for good reasons. Some hospitals use big data to predict if a baby who is born too early will get sick. The hospital can then take extra steps to take care of that baby so he or she does not get sick.     4     It can be used to predict which kinds of people are likely to break the law or hurt others, even if they have not done anything wrong.

    5     It is because the computer programs used to look at big data and understand it are written by people. People think a certain way. Because they think a certain way, they build a model of those ideas. These ideas are then used to look at the data. Sometimes, these ideas are helpful for people or businesses. Other times, bad ideas can cause problems for certain groups of people.