so what does the Quinceanera in the title mean?

It seems not mean "a ceremony for one's adulthood"

I want to express a ceremony for one's adulthood indeed, but I can't find an appropriate word

Note. Quinceanera is a celebration of a girl's 15th birthday, marking her "womanhood" and such. This is a Mexcian traditional ceremony.

回复 @啊啊是谁都对：thank you very much

回复 @圆环之理：Welp. I must admit that it's quite hard to describe it in only one or few words.