What does it mean that a girl's name is Mary?

It's a Chinese transliteration of Happy English female name. Mary for girls means merry, which is the Chinese transliteration of the female name of Merry English. Giving yourself an English name is good for socializing. Merry means: cheerful, cheerful, festive, happy and slightly drunk. Remind yourself that you are a foreign language learner, learn to think and communicate in a foreign language, and make unremitting efforts to learn a foreign language well.