disbelieve和doubt的区别

disbelieve:

vt. 不信怀疑

vi. 不信怀疑

There is no reason to disbelievehim.

没理由不相信他。

doubt:

n. 怀疑疑问疑惑

v. 怀疑不信恐怕拿不准

There is no doubt that he is a hero of our country.

毫无疑问，他是我们国家的英雄。