As a "water taster", you can't smoke, use perfume and other aromatic products, or even use smelly condiments, such as garlic. You can't eat them. In addition, it is necessary to avoid contact with articles with strong smell, such as gasoline and citrus, so "water taster" is not a simple occupation. However, Wang Lanying, who was born in the 1990s, did all this, and now he is the chief "water tester" of Chengdu No.2 Water Supply Plant.

Nowadays, social development is changing with each passing day, and there are more and more new occupations. Besides "water quality master", there are many occupations that we have never heard of. Let's have a look.