例句：

　　He works about twenty-five hours a week.

　　他一星期大約工作二十五個(gè)小時(shí)。

　　Mr. He asked her age. Twenty five, she replied.

　　何先生詢問(wèn)她的年齡。二十五歲，她回答道。

　　The skull bones fuse between the ages of fifteen and twenty-five.

　　顱骨在15和25歲之間長(zhǎng)合。