It's been an age since we've seen them.

　　我們有很長(cháng)一段時(shí)間沒(méi)有見(jiàn)到他們了。

　　The car is in remarkably good condition for its age.

　　就車(chē)齡而論，這輛車(chē)的狀況好極了。

　　She entered public life at the age of 25.

　　她25歲時(shí)開(kāi)始了經(jīng)常拋頭露面的工作。

　　The competition is open to young people under the age of 18.

　　這項比賽讓18歲以下的青少年參加。

　　By the age of 21 he controlled the company.

　　他21歲就掌管了公司。