It must be something unpleasant.

一定是不愉快的事。

youdao

It must be something like ice cream, cotton candy and rabbit's fur.

它一定是一种即像冰淇林、又像棉花糖和兔子毛皮的东西。

youdao

It must be something you find personally rewarding and which maintains your interest.

它必须是你自己觉着有奖励，而且保持你一直有兴趣。

youdao

It is a true bipartisan effort. Opposition Republican Lindsey Graham of South Carolina says something must be done.

VOA: standard.2010.03.23

So it must be something nonphysical.

那么它一定是某种无形的东西

耶鲁公开课 - 死亡课程节选

That is to say, if something causes literature, there must be some sort of authority behind it and therefore we find ourselves asking, "What is an author?"

即是说，如果文学有缘由的，它的背后一定存在作者,所以我们会问，“作者是谁？“

耶鲁公开课 - 文学理论导论课程节选

It seems that if you call it a war, we delude ourselves into believing it must be something we can win with warfare.

FORBES: Connect

I've seen the photos and I've read the press releases. (Laughter.) So it must be doing something right.

WHITEHOUSE: President Obama Calls for New Steps to Prepare Children for College and Careers | The White House

If it's courting inflation, then it must be doing something.

BBC: Quantitatively more easing from the Bank