You must return the book in fifteen days.
你必须在十五天内归还书籍。
I have fourteen roosters and fifteen hens.
我有十四只公鸡和十五只母鸡。
There are fifteen boys and nineteen girls.
男生有十五位，女生有十九位。
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2021-09-06
You must return the book in fifteen days.
你必须在十五天内归还书籍。
I have fourteen roosters and fifteen hens.
我有十四只公鸡和十五只母鸡。
There are fifteen boys and nineteen girls.
男生有十五位，女生有十九位。