If you’ve ever been to Switzerland, you already know that pretty much everything is expensive there, and the fresh mountain air is apparently(似乎)no exception. Well, most of it is actually free, but if you want to order a liter of Swiss mountain air collected from a secret location in the Alps, you’ll have to pay a whopping $167. This is not a joke.

John Green, a British expert living in Basel, Switzerland(瑞士巴塞尔市), is the brains behind “Genuine Mountain Air from Switzerland,” a fledgling(新兴的)online business that promises to ship fresh, high-quality Swiss air anywhere around the world, if you can afford it. Green asks to collect the air from a “secret location” near the town of Zermatt, then bottles it up in glass containers, labels it and ships it to buyer.

Described as “the ultimate present for the man or woman that has everything,” the bottled mountain air also comes with a certificate of authenticity(质量证书)and the exact GPS collection of the place it was collected from.

A liter of authentic Swiss mountain air costs $167, but Green realizes that not everyone can afford to pay that much, even though we’re talking about “the best air in the world”. So he also has a cheap offer on his website: $97 for a 500ml jar of air. If money’s not a problem for you, you can buy a 3-liter container for $247. While the claim that this is the best air in the world is debatable(有争议的), there’s no question that this is the world’s most expensive air.

Green also donate 25 percent of his proceeds to a charity called World Vision, which supports a clean water program in Africa. But even if you deduct this donation from the price, his air is still extremely expensive.

When you buy something, do you care about its brand? May 10th is China Brand Day. It started in 2017. Many activities are held to help Chinese brands develop across the country. In the past, people don’t think “Made in China” products are good. But that seems to be changing. In fact, Chinese brands have won the hearts of people at home and abroad. 9 Chinese companies （公司） are on Time magazine’s the world’s 100 most influential companies, including   Alibaba, Tencent, TikTok, Huawei   and   Didi Chuxing.

Experts say Chinese brands will continue to be more popular over the next 10 years among the post-10s. Xinhua Research Center made a survey about people’s preferences （喜好） of brands. Here are the survey results.