I think this must be a lady.

我想这一定是位女士。

youdao

I think this must be the most immediate comprehension and the right one.

我觉得这个理解肯定是最直接的，也是对的。

youdao

This must be a very difficult job for you.

这对你来说肯定是一项非常艰巨的任务。

《柯林斯英汉双解大词典》

This must be done to equally divide the four hundred thirty-five voting districts in the House of Representatives among the states.

VOA: special.2010.12.25

And if it is going to be a standing wave then this must be an integral number of wavelengths.

如果这有个驻波的话,那么周长就是个整数。

麻省理工公开课 - 固态化学导论课程节选

qB This must be heat q B, right. So again, but now let's also look at our special function.

这个不是，这应该是热量，对吧？所以又一次，这些是我们熟悉的。

麻省理工公开课 - 热力学与动力学课程节选

This must be the biggest thing to happen in world football for four decades surely!

BBC: Nations Cup Day 10 as it happened

"This must be a joke, " said one trendy-looking young woman who frequents good restaurants in Tokyo.

CNN: THE YEN TO TRAVEL

This must be the reason that every time I think of Nice, I think of food.

FORBES: Nice Is A Haven For Gourmets