123　be bound to do和be bound for

① be bound to do一定，必定；受约束的，有义务的。

You are bound to succeed. 你一定会成功的。

She is bound in duty to obey. 她有义务服从。

② be bound for（some place）准备到……去的，开往/驶往……的。

The train is bound for Shanghai. 这列火车开往上海。

At last he got on board the ship bound for England. 他终于乘上去英国的船。