doubtful的意思是怀疑的。
doubtful的意思是怀疑的;可疑的;令人生疑的;疑心的;不能确定的。怀疑的英文是doubtful。
doubtful造句
1、I remain doubtful about this proposal.
我对这次的提案持怀疑态度。
2、The purpose of his coming to this party is still doubtful.
他来这个派对的目的仍然令人怀疑。
3、It is doubtful whether this project can be carried out smoothly.
这个项目能否顺利执行值得怀疑。
4、I was still very doubtful about the chances for success.
我对能否成功仍然深表怀疑
5、I'd love to go on the trip, but I'm doubtful about its feasibility.
我很想参与这次旅行,但是我对它的可行性表示怀疑。