dubious

adj.

半信半疑的，犹豫不决的；可疑的；暧昧的，含糊的；不可靠的

1. I feel dubious about his honesty.
   我对他的诚实表示怀疑。
2. I am dubious about accepting the offer of the job.
   我犹豫不定是否接受提供给我的那份工作。
3. I remain dubious about her motives.
   我对她的动机仍存疑念。
4. The testimony given by him is dubious.
   他所作的证据是可疑的。
5. He uses some dubious shifts to get money.
   他用一些可疑的手段去赚钱。
6. He shares the same rotten tastes with some dubious characters.
   他和一些不三不四的人臭味相投。
7. I am still dubious about that plan.
   我仍然对那个计划拿不准。

Dubious Conceptions: The Politics of Teenage Pregnancy
Dubious conceptions: The politics of teenage pregnancy
Events per person year—a dubious concept
Contingent Valuation: From Dubious to Hopeless
Nineteen dubious ways to compute the exponential of a matrix, twenty-five years later
The Deterrent to Dubious Corporate Behavior: Profitability, Probability and Safety Recalls
Some dubious premises in research and theory on racial differences: Scientific, social, and ethical issues.
Dubious and Incorrectly Identified Ugaritic Incantation Texts : Incantations and Anti-Witchcraft Texts from Ugarit
Rich Media, Poor Democracy: Communication Politics in Dubious Times by Robert W. McChesney
Book Review Advertising, the Uneasy Persuasion: Its Dubious Impact on American Society by Michael Schudson