1·To express doubt about; dispute.
对…表示怀疑；争论。
2·What intonation shall I use if I want to express doubt?
如果我想表示疑问我该用什么语调？
3·They express doubt that the system can work effectively.
对这种制度究竟能否奏效表示怀疑。
4·In this lesson, we'll look at how to express doubt, admit risk, confirm support, and speculate about possible future situations or scenarios.
在这节课中，我们来看下如何表达怀疑，承认风险，肯定支持并对未来或方案进行深思。
5·The discovery caused a sensation, people associate the sea eel with live animals, but also did not express any doubt.
这一发现引起了轰动，人们将海鳗与活体动物联系起来，但也没有表示任何怀疑。
6·Britain’s Financial Reporting Council has suggested a fourth alternative, that would express “serious doubt” about the ability of the company to continue as a going concern.
英国财务报告委员会提出了第四种处理方式，对公司持续经营可行性提出认真的疑惑。
7·He looked at me curiously as if he had some doubt which he did not care to express.
他好奇地看着我，似有疑问又不肯说出口来。
8·Cinderella, a famous fairy story, is a archetype of love story in literature. Jane Austen often uses it to express women's desire for a happy life and their doubt about the value of the norm social.
“灰姑娘”结构是奥斯丁所偏爱的叙事形式，表达了作者作为女性其团体生命中的“匮乏感”和关于男权中心社会主流观念的质疑与批判。
9·Journalist: whether our express train's safety factor high or not? Our express train's speed is so high. I doubt whether it could happens rear-end accident or.
记者问：请问我们的高铁安全系数高吗？我们的列车速度这么快，会不会发生追尾事故？
10·Disjuncts, in meaning, express the speaker's attitude to what he is saying, his evaluation of it, or shades of certainty or doubt about it.
评注性状语就是指说话人对他所说的话的态度或对话语内容进行的评价。