例句：

　　They'll be back by suppertime.

　　他們晚飯前會(huì)回來。

　　Will she be back anytime soon?

　　她會(huì)馬上回來嗎？

　　She turned back toward home.

　　她折了回來往家走去。

　　"Welcome back," she beamed.

　　“歡迎回來，”她笑容滿面地說。

　　Can you call back tomorrow?

　　明天你能回電話嗎？