doubtful
doubtful
英[ˈdaʊtfl]美[ˈdaʊtfl]
adj.不大可能的，怀疑的，拿不定主意的，低劣的；
副词：doubtfully;
例句
It is doubtful whether our resources will hand out for more than two or three days more.我们的资源能否再维持两三天以上值得怀疑。
Everyone was doubtful at first, but his statement in detail held up.起初大家都怀疑, 但他的详细叙述证明情况属实。
of doubtful provenance出处可疑的
I am doubtful whether I can solve the puzzle, but I'll have a shot at it.我怀疑能否解决这难题, 我将试试看。
It is doubtful whether it is true or not.这件事的真假是可疑的。
I am very doubtful of that.我很疑心那件事。
I feel very doubtful about this.我对这点很怀疑。
Let's try to clear up our difficult and doubtful points.让我们设法把难处和疑点解决一下。
I feel doubtful what I ought to do.我不知该做什么。
I'm doubtful where to go.该往哪里去我心中无底。
英语六级真题
Somewhat doubtful.
出自-2016年6月阅读原文It's doubtful that a computer program can do that—at least, not without some undesirable results.
2017年12月六级真题（第二套）阅读 Section CYet like many college teachers around the U.S., the faculty remain doubtful that their work as educators can be measured by a "learning outcome" such as a graduate's ability to investigate and reason.
2017年6月六级真题（第一套）阅读 Section A柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
未必的;不大可能的
If it is doubtful that something will happen, it seems unlikely to happen or you are uncertain whether it will happen.
例句
For a time it seemed doubtful that he would move at all...有一段时间他似乎根本不会搬家。It is doubtful whether Tweed, even with his fluent French, passed for one of the locals...尽管特威德能说一口流利的法语，他是否能被当作当地人还很难说。ADJ-GRADED
怀疑的;疑惑的;拿不定主意的
If you are doubtful about something, you feel unsure or uncertain about it.
例句
I was still very doubtful about the chances for success...我对能否成功仍然深表怀疑。Why did he sound so doubtful?为什么他听上去如此不确定？ADJ-GRADED
(质量或价值)低劣的，不可靠
If you say that something is of doubtful quality or value, you mean that it is of low quality or value.
例句
...selling something that is overpriced or of doubtful quality...售卖漫天要价或质量低劣的东西They also seemed of very doubtful value.它们好像也没有多大价值。ADJ-GRADED
(通常指运动员因伤)不大可能参加（比赛）的
If a sports player is doubtful for a match or event, he or she seems unlikely to play, usually because of injury.
例句
Forsyth is doubtful for tonight's game with a badly bruised leg.福赛斯腿部严重擦伤，不大可能参加今晚的比赛。英汉词典释义
adj.
难以预测的, 未定的
This is a doubtful battle.这是一场胜负难测的战争。I'm doubtful where to go.该往哪里去我心中无底。I feel doubtful what I ought to do.我不知该做什么。怀疑的, 可疑的
Let's try to clear up our difficult and doubtful points.让我们设法把难处和疑点解决一下。I feel very doubtful about this.我对这点很怀疑。I am very doubtful of that.我很疑心那件事。It is doubtful whether it is true or not.这件事的真假是可疑的。低劣的，未必真实的
英英词典释义
Adjective
1. open to doubt or suspicion;
"the candidate's doubtful past""he has a dubious record indeed""what one found uncertain the other found dubious or downright false""it was more than dubitable whether the friend was as influential as she thought"- Karen Horney2. fraught with uncertainty or doubt;
"they were doubtful that the cord would hold""it was doubtful whether she would be admitted""dubious about agreeing to go"3. unsettled in mind or opinion;
"drew a few tentative conclusions"
