1
be bound to do sth
表示必然性或义务，主语可以是人或物。
With his talent, he is bound to succeed.
以他的才华，他肯定会成功。
肯定，必然，注定
先理解核心含义，再看它在真实句子里的用法。
肯定，必然，注定
Used to say that something is certain or very likely to happen.
With his talent, he is bound to succeed.
以他的才华，他肯定会成功。
With such a strong team, they are bound to win the championship.
有这样强大的团队，他们肯定会赢得冠军。
If you keep practicing, you are bound to improve your English.
如果你坚持练习，你的英语肯定会提高。
He is bound to finish the report by Friday because he promised his boss.
他必须在周五之前完成报告，因为他向老板承诺了。
表示必然性或义务，主语可以是人或物。
With his talent, he is bound to succeed.
以他的才华，他肯定会成功。
表示对过去情况肯定推测。
She is bound to have arrived by now.
她现在肯定已经到了。
Not this
He is bound to New York.
Use this
He is bound for New York.
be bound to 用于表示“必然、注定”，而表示“前往某地”要用 be bound for。
Not this
He is bound not to fail.
Use this
He is not bound to fail.
be bound to 的否定形式是 be not bound to，表示“不一定”，而非加 not 在 to 前表示“一定不”。
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后接动词原形
Dictionary facts from ECDICT.