They asked the spectators to keep off. 他们要观众站开些。
Danger! Keep off! 危险! 勿走近!
请看这两个例句,这里的 keep off 表示“使远离”,但 keep away 也表示“远离”,应该怎样区分呢?
keep away 中的 away 是副词,keep off 中的 off 既可以用作副词,也可以用作介词。
1. 当 off 用作副词时,keep off 与 keep away 意思相同,均表示“离开;远离”。例如:
Both of you, keep away.
Keep off, you plague rats!
2. 当 off 用作介词时,keep off 后可接宾语,此时该短语相当于 keep away from。例如:
You keep away from her horses, understand?
I decided to keep away from them.
Sometimes we made shelters with leaves and branches to keep off the rain.