1·All the time you are in doubt about the cause of your illness, you are fighting against an invisible enemy.
一直以来你都在怀疑自己的病因，你是在和一个无形的敌人斗争。
—— 《柯林斯英汉双解大词典》
2·He's another great talent. I think we have a really great squad, no doubt about it.
他是另一位伟大的天才，我想我们的队伍很出色，不要怀疑这一点。
3·The markets' view, as far as anyone can tell, is that the EU bail-out funds must be expanded to remove any doubt about their capacity to save Portugal and Spain.
正如每个人都能看得出，市场的观点是，必须扩大欧盟援助资金以解除人们对市场成功解救葡萄牙西班牙能力的任何怀疑。
4·There's a lot of overlap here, no doubt about it. Who's winning?
有很多重叠的地方，不用怀疑它，谁又是赢家呢？
5·Simply because of doubt about the generic integrity of various forms of discourse.
仅仅因为怀疑，不同形式话语的普遍的完整性。