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。
I have family and friends who have had swine flu, though I doubt if they appear in the figures.
我有家人和朋友感染了猪流感，尽管我怀疑他们是否出现在数据中。
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 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 that was what he wanted.
我怀疑那是不是他想要的。
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。
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。
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 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。
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'll try to come, though I doubt if I'll be there on time.
我将设法来，尽管我怀疑我是否能按时赶到。
Well, speak for yourself. I doubt if that is true of most Brits.
但这只是为自己说话而已，我怀疑是否大多数英国人会认同这样的说法。
Even supporters doubt if Mr Orban understands the game's new rules.
现在就连奥班的支持者都怀疑他是否理解新的游戏规则。
Your plan is good in theory, but I doubt if it'll work in practice.
你的计划在理论上是不错的，但我看实行起来未必能行。
Rowan didn't ask, "Exactly where is he?" or "I doubt if I can do it."
罗恩并没问“他到底在哪？”或者说“我不知能不能干好它。”
I knew where I was headed, though I doubt if I would have admitted it to myself.
我知道自己在去往哪里，尽管我怀疑自己是否敢于承认真相。
If someone told me in a job interview that, "I'm really into software engineering — my documentation skills are excellent," I doubt if I would hire him.
如果某人在工作面试时对我说：“我对软件工程有很深入的理解，我的文档技巧非常棒。”我不知道我是否会雇用他。
I can also accept putting information about the harmful effects of cigarettes on cigarette packages, although I doubt if that had much effect in reducing smoking.
我也能接受把香烟有害健康的信息放在香烟包装上的做法，尽管我怀疑它对于减少吸烟能有多少作用。
I can also accept putting information about the harmful effects of cigarettes on cigarette packages, although I doubt if that had much effect in reducing smoking.
我也能接受把香烟有害健康的信息放在香烟包装上的做法，尽管我怀疑它对于减少吸烟能有多少作用。
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