例句：

　　我留了口信，但他沒(méi)有回電話(huà)。

　　I left a message but he didn't return my call.

　　她沒(méi)給他回電話(huà)，這使他有些不安。

　　It niggled him that she had not phoned back.

　　在方便的時(shí)候我會(huì)回電話(huà)的。

　　I'll call back at a more convenient time.