Rose was doubtful about the whole idea.
罗斯对整个设想持怀疑态度。
We were doubtful about the practicability of the plan.
我们怀疑这个计划是否切实可行。
那本身就令人怀疑。
The research lacks solid evidence, and therefore, its conclusions are doubtful.
这项研究缺乏确凿的证据，因此，其结论值得怀疑。
It's doubtful if this painting is a Picasso.
这未必就是毕加索的画。
With her injuries it's doubtful that she'll ever walk again.
她多处受伤，今后能否行走还很难说。
This wine is of doubtful quality.
这酒的质量有问题。
He was doubtful about accepting extra work.
他拿不定主意是否接受额外工作。
It's doubtful whether the car will last another year.
这辆汽车未必还能用上一年。
I was still very doubtful about the chances for success.
我仍然不能肯定成功的可能性有多大。
For a time it seemed doubtful that he would move at all.
短期内他似乎不大可能搬走。
Forsyth is doubtful for tonight's game with a badly bruised leg.
福赛斯因为严重的腿伤不太可能参加今晚的比赛。
But many people are still doubtful.
但是，许多人对此表示怀疑。
It is doubtful whether this is true.
这么说是否真实值得怀疑。
He always shows a doubtful expression.
他总是露出怀疑的表情。
这很可疑。
很令人怀疑。
A doubtful friend is worse than a certain enemy.
可疑的朋友比确定的敌人更可怕。
The fish is also safe, although consumers are doubtful.
尽管消费者有怀疑，但是鱼也是安全的。
Perhaps, but it is doubtful he would have succeeded.
或许是这样，但他是否会成功却很成疑。
I am rather doubtful about his real motive for doing this.
我颇怀疑他做此事的动机。
Any theory that has not been tested is just a doubtful one.
任何未经检验的理论都是不足为信的。
She is doubtful whether her mother really likes the present.
她怀疑她母亲是否真喜欢那个礼物。
They suddenly start feeling doubtful and fearful about this goal.
他们会突然对这个目标怀疑和害怕。
Byron was born into an aristocratic family of doubtful reputation.
拜伦出生于一个名声有些问题的贵族家庭。
Byron was born into an aristocratic family of doubtful reputation.
拜伦出生于一个名声有些问题的贵族家庭。
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