Generally speaking, air is rare among people’s names. Names like elle and ellen are more common. Just like Chinese names, you rarely meet people named air or white clouds in life. Of course you You can also choose it, but it is a bit like a screen name or a pen name. If you take a foreign teacher class, it is recommended that you choose a regular name so that you can use it in the future. As for the Brown you mentioned, it means brown when not used as a person's name, but it has no real meaning when used as a person's name. It is usually translated as Mr. or Miss Brown. Brown should be a surname in English. If you want to be named after Brown, you also need a first name. There are also many one-letter names, and many ways to get the answer you want.