(1) 一般直接用基數(shù)詞表示,如:

Her daughter is eighteen. 她的女兒18歲。

(2) 用“基數(shù)詞 years old”表示,有時(shí)可將years old 換成years of age。如:

Her daughter is eighteen years old. / Her daughter is eighteen years of age. 她的女兒18歲。

(3) 用“at the age of 基數(shù)詞”表示。如:

Her daughter got married at the age of eighteen. 她的女兒18歲就結(jié)了婚。

(4) 用“基數(shù)詞-year-old”表示,此結(jié)構(gòu)常做(前置)定語(yǔ)。如:

Her 18-year-old daughter is now in the university. 他18歲的女兒現(xiàn)在上大學(xué)。

(5) 用“of 基數(shù)詞”表示,此結(jié)構(gòu)常做后置定語(yǔ)。如:

Her daughter is now a pretty girl of 18. 她女兒現(xiàn)在一個(gè)18歲的美少女了。

(6) 用“aged 基數(shù)詞”表示,此結(jié)構(gòu)常做后置定語(yǔ)。如:

Lying on the floor was a boy aged about seventeen. 躺在地板上的是一個(gè)約莫十七歲的男孩。

(7) 用“be in one’s 幾十的復(fù)數(shù)形式”表示某人大概的年齡。如:

He went to the United States in his fifties. 他五十多歲時(shí)去了美國(guó)。