Keep well back from the road.

　　離公路遠些。

　　Police had to erect barriers to keep crowds back.

　　警察只得設立路障來阻截人群。

　　Police had to erect barriers to keep crowds back.

　　警察得設立路障來阻截人群。

　　Why do they keep passing back to the goalie?

　　他們為什么總是把球回傳給守門員？

　　Neither of them is telling the whole truth. Invariably, they keep something back.

　　他倆誰也沒把全部實情都說出來。他們總是要隱瞞些什么。