Will it work? It seems doubtful.

这项计划会起作用吗？似乎很值得怀疑。

It is doubtful that he will come.

会不会来值得怀疑。

A sceptical person is doubtful about something.

一个持怀疑态度的人对某事表示怀疑。

" Doubtful that I would turn up? " Dumbledore suggested shrewdly.

“不相信我真的会来？”邓布利多尖锐地指出。

I am doubtful whether she is still alive.

我难以确定她是否还活着。

Uncertainty means that something is doubtful or unknown.

不确定性是指某些事情是可疑的或未知的。

Oh, doubtful. I just moved here from London.

哦？不会吧。我刚从敦搬过来。

It is doubtful whether Ted will keep his promise.

泰德会不会履行承诺令人起疑。

She too was initially doubtful surgery could help her.

她最初怀疑手术是否可以帮助到自己。

Doubtful. Klaus doesn't want to be pointed out.

不太可能。克劳斯不想被人找到。

We were doubtful about what the government was saying.

我们一直怀疑政府的说法。

Lord Rowan looked doubtful. " Would Lady Lysa have you" ?

" 噢，是的，" 小指头道，" 办法就在我两腿。" 那双灰绿眼睛里闪动着淘气的神色，" 大人们，只要你们同意，我打算去谷地一游，以赢得莱莎·徒利夫人的青睐。等我讨她做了老婆，我们就将不流一滴血，而把整个艾林谷收入囊中。"

She added compromise with Britain is still possible, but doubtful.

她补充称，虽然会与英国妥协，但仍存有变数。

Some people, however, are still doubtful of the new rules.

然而，一些人仍然对新规表示怀疑。

I was doubtful about the old man's good intentions.

这个老头的好意令我起疑。

The big wench was looking doubtful. " We would need horses" .

肥妞儿露出怀疑的神色。" 这么做，也得有马才行。"

The prospects for the Tokyo Olympics in July and August are doubtful.

7月和8月东京奥运会能否如期举行堪忧。

It's doubtful that computerized voting will make the situation any better.

计算机化的投票将会让状况变得更好这一点是值得怀疑的。

Some economists remain doubtful about whether it's a sound economic policy.

一些经济学家仍然怀疑这是否是一个合理的经济政策。

Wujing looked doubtful. " This horse is too slow to be a dragon" .

" 这马的速度太慢了，不可能是龙啊。"