It must have cost a tidy sum.

这准花了相当大的一笔钱。

《牛津词典》

It must have been one hell of a party.

那肯定是一次很棒的聚会。

《牛津词典》

It must have happened at about five o'clock in the morning.

这件事一定发生在凌晨五点钟左右。

《牛津词典》

But what I do remember was, at the end of that long, continuous coverage it must have been about two a.m.

VOA: special.2009.08.16

By the same token, if literature has effects, it must have effects on someone, and this gives rise to the equally interesting and vexing question, "What is a reader?"

同样，如果文学史有影响的，它一定会对某些人产生影响，它也会引出一个同样有趣,而恼人的问题，“读者是谁？“

耶鲁公开课 - 文学理论导论课程节选

That's so basic, it must have happened a million times and that's the basic idea of the stock market.

这是很基础的概念,早已屡见不鲜,而这就是股票市场的最初思想

耶鲁公开课 - 金融市场课程节选

That was news to me as it must have been to Mrs Miller and her family.

BBC: New "Welsh" name tipped for Secretary of State's job

His defence was that he didn't remember it, but it must have been consensual sex.

BBC: Rape survivors open up about their experiences

This chart made me buy cupcakes (marketers, take note) so it must have done something right.

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