a. 可疑的,靠不住的 ≈ suspicious
a. 无把握的,吃不准的 ≈ doubtful
a. 不好的,质量不佳的
Many critics regard this argument as dubious or, at best, misleading. 许多批评家认为这一论点靠不住,或者说至少有误导性。
I can see you are dubious; take some time to think about it.
我看得出你在犹豫,花点时间考虑一下吧。
The room was decorated in dubious taste. 这房间的装修品位不佳。
BrE /əˌbriːviˈeɪʃn/