adj.有疑心的；不相信的
动词doubt的现在分词形式.
He doubts if the officer is anybody. 他怀疑这官员是个要人。
I doubt the truth of it. 我怀疑此事的真实程度。
There is no doubt that we will be successful. 毫无疑问我们会成功的。
There is no doubt about it. 那是毫无疑问的。
adj.信任的(不怀疑的)
