牛津3000｜9.15核心词doubt

doubt

noun
a feeling of being uncertain about sth or not believing sth 疑惑；疑问；不确定；不相信

~ (about sth)
◆ There is some doubt about the best way to do it.
这件事怎么做才是最佳办法有点吃不准。
◆ There is no doubt at all that we did the right thing.
毫无疑问我们做得对。

◆The article raised doubts about how effective the new drug really was.
这篇文章对这种新药的实效有多大提出了疑问。

~ (in doubt as to sth)吃不准
◆If you are in any doubt as to whether you should be doing these exercises, consult your doctor.
如果你拿不准是否应进行这些运动，咨询一下医生好了。
◆If in doubt, wear black.
拿不定主意就穿黑色衣服。

◆New evidence has cast doubt on the guilt of the man jailed for the crime.
新的证据使人们对这个犯罪入狱的男子是否有罪产生了怀疑。

◆She knew without a shadow of a doubt that he was lying to her.
她十分清楚他在对她撒谎。

◆Whether he will continue to be successful in future is open to doubt.
他今后能否继续获得成功值得怀疑。

IDIOMS
●without/beyond (any) ˈdoubt
in a way that shows that sth is completely certain 无疑；确实
◆The research showed beyond doubt that smoking contributes to heart disease.
这项研究确实表明吸烟会导致心脏病。

●have your ˈdoubts (about sth)
to have reasons why you are not certain about whether sth is good or whether sth good will happen （有理由）不相信；对（某事）持怀疑态度
◆I've had my doubts about his work since he joined the firm.
自从他加入公司以来，我对他的工作一直持有怀疑。

●give sb the ˌbenefit of the ˈdoubt
to accept that sb has told the truth or has not done sth wrong because you cannot prove that they have not （在证据不足的情况下）假定某人说实话，假定某人没有错