有三種尺寸——小號、中號和大號。

　　There are three sizes ─ small, medium and large.

　　這些醫院的關(guān)閉是在三年期間逐步進(jìn)行的。

　　Closure of the hospitals was phased over a three-year period.

　　有三人死于凍霧引起的連環(huán)車(chē)禍中。

　　Three people died in a multiple pile-up in freezing fog.

　　解決這個(gè)問(wèn)題有三種根本不同的方法。

　　There are three essentially different ways of tackling the problem.

　　三個(gè)星期之后他才聽(tīng)到這個(gè)消息。

　　It was three weeks later that he heard the news.

　　三個(gè)月后決定終止治療。

　　It was decided to discontinue the treatment after three months.