line的例句：
What line of work are you in?
你干哪种工作？
Don't give me that line about having to work late again.
别再跟我说不得不工作到很晚这样的话。
Rule a line at the end of every piece of work.
I can only remember the first two lines of that song.
我只记得那首歌的头两句歌词。
I couldn't get through ─ the line's engaged.
我打不通电话——线路忙。
