Since he changed jobs he's looked like a new man.

　　他跳槽之后像換了一個(gè)人似的。

　　I haven't seen him since the summer before last.

　　我已有兩個(gè)夏天沒見過他了。

　　They've been best friends since they were children.

　　他們從孩提時(shí)起就是最要好的朋友。

　　He's been working in a bank since leaving school.

　　他中學(xué)畢業(yè)以后一直在一家銀行工作。

　　The hotel has polished up its act since last year.

　　這家酒店自去年以來已經(jīng)改善了服務(wù)水平。