There is some doubt about the best way to do it.

这件事怎么做才是最佳办法有点吃不准。

《牛津词典》

Some doubt Kirlin can get them airborne.

有人怀疑柯林不可能把飞机空运过来。

youdao

Some doubt still subsists in his mind.

他头脑中还是有些疑虑。

youdao

Some aquaculture critics doubt that aquaculture can keep growing at the current rate.

VOA: special.2011.02.08

So, when in doubt, if you're having some weird character issue, odds are you need to escape it in some way.

如果你有拿不准的字符,可能就要用到转义字符了。

哈佛公开课 - 计算机科学课程节选

I just want to make mention of this in case there's ever doubt, generally parentheses do solve your problem as an arithmetic but do realize this is some lower level details we'll come back to over time.

是想告诉大家如果你对某些式子的前后运算关系不确定，就加上括号,这都是一些小细节,我们以后还是会再提到的。

哈佛公开课 - 计算机科学课程节选

But some doubt that he will curb spending enough to make the package fiscally responsible.

ECONOMIST: Business-minded voters have doubts about both candidates

At the same time, the nutritional value of the news itself has come into some doubt.

NPR: Excerpt: 'Strange Bedfellows'

There is some doubt, though, whether he was much pursued, except in his mind.

ECONOMIST: Anita Hoffman