① be bound to do一定,必定;受約束的,有義務的。
You are bound to succeed. 你一定會成功的。
She is bound in duty to obey. 她有義務服從。
② be bound for(some place)準備到……去的,開往/駛往……的。
The train is bound for Shanghai. 這列火車開往上海。
At last he got on board the ship bound for England. 他終于乘上去英國的船。