doubt:
n. 懷疑疑問疑惑
v. 懷疑不信恐怕拿不準
There was little doubt in my mind.
我心裏幾乎沒有疑問。
There is good reason to doubt this.
有正當理由懷疑這件事。
I doubt the feasibility of the plan.
我懷疑這個計劃的可行性。
A doubt niggled at her.
一絲疑惑困擾着她。
There seemed to be no doubt about it.
此事似乎毫無疑問。
wonder:
v. 想知道(用於詢問時)不知道感到疑惑感到詫異感到驚歎
n. 驚訝奇蹟能人有特效的東西
adj. 極好的,靈驗的神奇的
I wonder you don't feel it too.
我驚訝於你也感覺不到它。
I wonder if you can help me.
不知您是否能幫我的忙
I wonder who that letter was from.
我不知道是誰來的信。