1·I have doubts about the practicality of their proposal.
我怀疑他们的建议是否行得通。
—— 《牛津词典》
2·Liberals have doubts about her, too.
开明的人们对她同样有疑虑。
3·I may have doubts about it.
我可能要怀疑了。
4·Do you have doubts about your partner?
你对另一半有疑问么？
5·I have doubts about the truth of the story.
我对那个故事的真实性有所怀疑。
6·Many people have doubts about the new project.
许多人对这项新工程有怀疑。
7·Many people have doubts about the new project.
许多人对这项新工程有思疑。
8·If you have doubts about your choice, please ask me.
假如有你对选择的题目有问题的话请问我。
9·Many people make net friends, but I have doubts about it.
很多人交网友，但是我对此持怀疑态度。
10·I have doubts about the advisability of surgery in this case.
关于该病例做手术的可行性，我持有疑问。