doubt

释义

n. 怀疑, 疑惑\nv. 怀疑, 不信 no doubt adv. 无疑地；很可能地 in doubt 可怀疑的；不能肯定的 there is no doubt 毫无疑问

例句

There was still one little nagging doubt at the back of his mind.

他的心头仍有一丝挥之不去的疑虑。