I agree with it in principle but I doubt if it will happen in practice.
我原则上是同意它的，但我怀疑在实践中它是否会发生。
If the rain doesn't stop, I doubt if we can have the game tomorrow.
雨再不停，明天的比赛就要成问题了。
John: I doubt if I can pass it.
约翰：我怀疑我是否能及格。
我怀疑他是否诚实。
I doubt if that was what he wanted.
我怀疑那是不是他想要的。
好的，但我怀疑是否能实现。
I doubt if it will rain today.
我不能确定今天是否会下雨。
I doubt if he has read it yet.
我怀疑他是否读过它。
I doubt if he is an honest man.
我怀疑他是否是个诚实的人。
I doubt if this is what she likes.
我看这不见得是她所喜欢的。
I doubt if anyone slept that night.
我怀疑那天晚上是否有人睡过觉。
我怀疑我是否能及格。
我怀疑她会不会来。
我怀疑他是否诚实。
I doubt if he has cleaned up the room.
我怀疑他是否已整理了房间。
I doubt if they can finish the job in time.
我怀疑他们是否能按时完工。
Then I doubt if you like operas at all.
那么我就怀疑你是否喜欢歌剧了。
I doubt if his aims are the same as mine.
我怀疑他的目的是否与我相同。
I doubt if his girlfriend will forgive him.
我怀疑他女朋友是否会原谅他。
You can complain, but I doubt if it works.
你可以抱怨，但我怀疑是否起作用。
I doubt if that chair will bear your weight.
我怀疑那把椅子是否承受得了你的体重。
I doubt if he will come to my birthday party.
我怀疑他是否回来参加我的生日聚会。
Either way, I doubt if it supports the gene theory.
但是，我怀疑这是否支持基因论。
I doubt if his promises will ever come to pass.
我怀疑他的那些许诺是否会兑现。
I doubt if there are three such men in Concord.
我疑心康科德这一带还找不出三个这样的人。
Some doubt if it can be done - or if it ever should.
有人怀疑它能否做到，或者是否就不应该去做。
I doubt if you have got any English periodicals.
我拿不准你们有没有英文期刊。
He appears to be your friend but I doubt if he is.
他看上去像是你的朋友，但我怀疑他是否是真心的。
I doubt if he'll be asked to speak again next year.
我怀疑明年是否还会请他来作报告。
I doubt if he'll be asked to speak again next year.
我怀疑明年是否还会请他来作报告。
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