We must be well prepared, there must be no slips.

我们必须好好准备，一定不要有差错。

《柯林斯英汉双解大词典》

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We must be consistent in applying the rules.

我们在实施这些规则时必须保持一致。

《牛津词典》

Now,for this business to work, we must be able to produce a charming widow, with or without the beauty, as advertised."

VOA: special.2010.04.24

But since we've got free will, we must be something more than a merely physical object.

但由于我们拥有自由意志,我们必定不只是纯粹的物理对象

耶鲁公开课 - 死亡课程节选

So we must be something more than a mere machine.

所以我们肯定不只是单纯的机器

耶鲁公开课 - 死亡课程节选

In the work ahead, we must be guided by the philosophy that made our Nation great.

NPR: Text of Bush's State of the Union Address

In short, we must be willing to get comfortable with the discomfort involved with taking risks.

FORBES: Why Getting Comfortable With Discomfort Is Crucial To Success

To win back the trust of the American people, we must be a "big tent" party.

WSJ: How Republicans Can Build a Big-Tent Party