It is doubtful that he will come.

他会不会来值得怀疑。

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。

It's doubtful that a computer program can do that — at least, not without some undesirable results.

计算机程序能否做到这一点是值得怀疑的——至少一些不希望有的结果难以避免。

So, it's doubtful that you can just cram down more and more carrots to get optimal Vitamin A levels.

因此，想通过大量食用胡萝卜来使体内的维生素 A 达到最佳水平，这样的做法就值得怀疑了。

It is doubtful that any foreign leader since has spent more time as a guest at the White House.

自此之后，是否有哪位外国领导人在白宫度过比这更长的时间令人怀疑。

As a result of that happening, it's doubtful that other countries would be thrilled to ever give up their nuclear weapons in the future.

由于这种情况的发生，其他国家是否会受触动而放弃核武器就值得怀疑了。

In the Republic of Ireland, the U.K.and Japan, it's doubtful that even that qualifier would be enough to stymie the awkwardness.

在爱尔兰共和国、英国和日本，即使有这样的说辞在先，是否足以避免尴尬的情景也难说。

Some 75% of all international communications are in English, and with the rise of the Internet, it is doubtful that this figure will decrease any time soon.

大约有75%左右的国际性交流以英语进行，而且随着互联网的兴起，这个数据恐怕短时间内是不会降低的。

With sea levels continuing to rise around the planet it's doubtful that nature will cause it to happen any time soon, but what if we built something ourselves.

随着地球上海平面的持续上升，大自然是否会在短时间内让它发生值得怀疑，但如果我们自己建造点什么呢？

So, fat in the muscle may be associated with insulin resistance, but it's doubtful that it's the key cause of insulin resistance by gumming up the insulin receptor lock.

所以，肌肉中的脂肪可能与胰岛素耐受症状有关，但是否是导致这种耐受症状的关键因素尚不确定，尽管这些脂肪能堵塞细胞胰岛素受体“锁孔”。

And it is doubtful that governments can do all that much to alter social norms, just as they hold little responsibility for the fact that they changed in earlier decades.

政府能否做出如此大的努力来改变社会规范是值得怀疑的，就像他们对自己在前几十年发生的改变几乎不承担任何责任一样。