be bound to do:一定做某事
【典型例句1】Her decision to cancel the concert is bound to disappoint her fans.
她决定取消这场音乐会,肯定会使她的歌迷失望。
【典型例句2】These changes are bound to have widespread social ramifications.
这些变化注定会造成许多难以预料的社会后果。
no doubt:无疑地,很可能地
【典型例句1】There's no doubt about her suitability for the job.
毫无疑问,她适合这项工作。
【典型例句2】Judging from his tone, there's no doubt he is against it.
听他的话音,便知他是反对的。