adj.有疑心的;不相信的
動詞doubt的現在分詞形式.
He doubts if the officer is anybody. 他懷疑這官員是個要人。
I doubt the truth of it. 我懷疑此事的真實程度。
There is no doubt that we will be successful. 毫無疑問我們會成功的。
There is no doubt about it. 那是毫無疑問的。
adj.信任的(不懷疑的)