to be dubious about something
对某事半信半疑

In our percent academe, the study about in dubio in doubt case is disheveled.
在目前我国的学术界, 对于疑罪从无的研究是散乱的。

Tom was dubious as to whether to accept the offer.
汤姆对于是否接受这个提议感到怀疑。

I feel dubious of its accuracy.
我对于它得正确性感到怀疑。

As long as the IsraelPalestine issue is unsolved, his Palestinian population will inevitably be accused of a dubious dual allegiance.
另外，来历不明的廉价进口药物中可能也存这种成分。

That is indubitably the best course of action.
那无疑是上策。

You are doubtless quite right to adhere to him, indubitably, he adhered to you.
你和他合得很不坏, 不消说, 他也和你合得来。

They admitted the force of my argument but remained dubious.
他们承认我的论点有说服力，但依然持怀疑态度。

Adverse selection was not the only dubious practice.
逆向选择并非唯一可疑的操作。

Now, you must agree that these are indubitable symptoms of insanity.
我想您也得承认，这些无可争辩的事实都是脑力衰弱的象征。

Besides， the significance of the alleged changes of human nature is dubious， and very hard to assess.
其次，所谓人性变化的意义也不清楚，且难以确定。

You're dubious? fitzgerald observed amiably.
你有些半信半疑？费兹杰拉德亲切地问。

And we're finding amoebas like this. This is Amoeba dubia.
我们发现了变形虫，这是放射变形虫

It was immediately and indubitably apparent that I had interrupted a scene of lovers.
很明显，我打扰了情人的幽会。

This random approach is not as dubious as one might expect.
这种随意的途径并不象人们所预期的那样无把握。

As the De Bauw report notes, this is a dubious argument.
正如得堡的报告中所说，这是一个有争议的争论。

The police raided the club and arrested several dubious characters.
警察袭击俱乐部并且逮捕了几个可疑人物。

CHEMICAL CONSTITUENTS OF ESSENTIAL OIL OF TWO VARIETIES OF ARTEMISIA DUBIA WALL.EX BESS.
牛尾蒿两变种精油的化学成分

The science of artificial intelligence has always had both a mysterious and a dubious sheen to it.
人工智能科学总是笼罩着一层神秘和可疑的光环。

In one corner lay some ironmongery of dubious aspect.
几根形相可疑的废铁件堆在一个角落里。

By the same token, avoid downloading anything from dubious Web sites.
同样，要避免从信不过的网站上下载任何东西。

His background is a trifle dubious, to say the least.
起码可以说, 他的背景不大可靠。

His background is a trifle dubious,to say the least.
起码可以说，他得背景不大可靠。

You have given quite a position of trust to someone with his dubious background.
你把信任给了一个有着可疑背景的人。

A slang term for a highrisk bond that offers a high return but is considered to have a dubious backing.
俚语。指高风险高回报的债券，但被认为有可疑的背景支持。