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。
Then steam power entered the scene, putting the whole future of waterpower in doubt.
随后，蒸汽动力登上了历史舞台，让整个水力发电的前景一度遭到了怀疑。
In the near future, it's not just going to be the number you see on your screen that will be in doubt.
在不久的将来，不确定的将不仅仅是你在屏幕上看到的数字。
When in doubt, use your own gear.
如果有疑问，请使用自己的装备。
The outcome was still in doubt.
结果仍不确定。
I'm rather in doubt about his explanation of this question.
我对他对这个问题的解释相当怀疑。
His inclusion in the team is in doubt.
他是否能被选入这个队还未定案。
The identity of the moai builders was in doubt until well into the twentieth century.
摩艾石像的建造者的身份直到20世纪才得到确认。
As the boy stood in doubt, Durbeyfield put his hand into his pocket, and produced a shilling (a unit of money used in Britain until 1971).
男孩站在那里犹豫不决的时候，德北菲尔德把手伸进口袋，拿出一先令（1971年前在英国使用的货币单位）。
A suggested explanation, so long as its correctness is still in doubt, is called a hypothesis.
提出来的解释，只要它的正确性仍然有疑问，便称为假说。
When in doubt, tell the truth.
有疑问时，就说真话吧。
一旦怀疑，就把它丢掉。
When in doubt, use fewer colors.
当不确定时，少用颜色。
The new geology leaves all in doubt.
新的地质情况让一切处于不确定之中。
犹豫的时候，穿黑色就对了。
When in doubt, stay with what you know.
如果有疑问，保留您所了解的那个。
如有怀疑，远离它。
If in doubt, mimic the body language.
如果有疑问，请模仿肢体语言。
Perhaps you are in doubt about the above.
或许关于上述种种你是存在疑问的。
If in doubt, consider a synchronized wrapper.
如果情况不确定，考虑使用同步包装。
Even Greece's EU membership would be in doubt.
甚至希腊的欧盟成员国身份都将被置于危险境地。
If (you are) in doubt, you may ask our teacher.
如果有疑问，你可以问我们的老师。
When in doubt, we're here for you. Give us a call.
当有什么疑问的时候，给我们打个电话，我们一直在这等你。
Basic principles aren't in doubt for the peacock exemplar.
基本原理没有因孔雀的例子而受到怀疑。
So, when in doubt slow down and think about what's going on.
所以，当有所怀疑的时候就慢下来并思考接下去做什么。
“The common attitude is ‘when in doubt, throw it out,’” he said.
布鲁姆先生建议道：“普遍的态度是‘怀疑的时候，就把它扔掉。’
“The common attitude is ‘when in doubt, throw it out,’” he said.
布鲁姆先生建议道：“普遍的态度是‘怀疑的时候，就把它扔掉。’
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