doubt、suspicion、distrust与uncertainty均含有“怀疑”之意。
doubt : 指对事物的真、假有怀疑。
- I'm having doubts about his ability to do the job.
我对他是否能胜任此项工作还有一些疑问。 - If there's any doubt about the rocket's engines, we ought to cancel the launch.
如果对火箭发动机还存有任何疑虑，我们都应该取消此次发射。
suspicion : 语气较强，指对某人做某事的目的、意图有怀疑，或认为某人做错事，但无确凿证据而产生怀疑。
- I have a suspicion that he only asked me out because my brother persuaded him to.
我怀疑是我哥哥说服他约我出去的。 - She had a nagging/sneaking suspicion that she might have sent the letter to the wrong address.
她心烦意乱地猜想／心里暗想自己可能把信寄错了地址。
distrust : 一般用词，泛指对某人某事不信任而感到怀疑。
- The two groups have existed in a state of mutual distrust for centuries.
几个世纪以来这两个群体一直处于互不信任的状态之中。
uncertainty : 侧重指对某事或选择等需作决定时的迟疑不决。
- He had an air of uncertainty about him.
他显出将信将疑的神情。 - There is considerable uncertainty about the company's future.
这家公司的前景相当渺茫。
