He worked sixteen hours a day.

　　他每天工作16個小時(shí)。

　　I ran away from home when I was sixteen.

　　我16歲時(shí)離家出走。

　　He had become a midshipman at age sixteen.

　　他16歲就已經(jīng)成了一名海軍學(xué)校學(xué)生。