He was racked with doubt about his decision.

他对自己的决定充满了怀疑，被怀疑折磨。

She expressed doubt about the story.

她对这个故事表示怀疑。

He has a tiny bit of doubt about the plan.

他对这个计划有一丝怀疑。

I don't have a bit of doubt about your ability.

我没有丝毫怀疑你的能力。

She felt a smidge of doubt about the decision.

她对这个决定感到少量怀疑。

There is not a vestige of doubt about his honesty.

对他的诚实没有一丝遗迹的怀疑。

He doesn't have an iota of doubt about his decision.

他对自己的决定没有一丝一毫的怀疑。

They have doubt about current green certification.

他们对当前的绿色认证持怀疑态度。

Please list two details that make Andrea doubt about the old lady.

请列出两个让安德烈娅对老太太产生怀疑的细节。

I never doubt about your IQ.

我从不怀疑你的智商。