感到疑惑的英文怎么说

感到疑惑的英文：
misgive

Foreign businessmen had misgivings about investment here.
外国企业家对在这里投资有顾虑。

I'm afraid some of our veteran comrades do harbour such misgivings.
恐怕我们有些老同志有这个担心。

She had some misgivings about what she was about to do.
她对自己要做的事有些疑虑。

I thought it well to impart my misgivings to President Roosevelt.
我认为最好把我的顾虑告知罗斯福总统。

Mr.Weber superiorly puffed away the absurd misgivings of women.
韦伯先生高傲地对女人们不合理的虑付之一笑。