We must be both cautious and clever.

我们不但要小心谨慎，而且要善用心计。

There must be a smaller door somewhere.

这里的某个地方一定有个小门。

It said the investigation must be transparent and perpetrators must be held to account.

称调查必须透明，必须追究肇事者的责任。

Issues of intellectual property theft must be solved.

知识产权的问题必须得到解决。

A letter must be sent out of the company and must be mailed or posted.

信函必须从公司里送出去，要通过邮局邮寄。

You must be imaginative, strong hearted.

你必须拥有想象力与决心。

As discussed earlier, this must be done with great care. But it must be done.

正如此前所讨论的，为自己争取利益时要谨慎，但这也是十分必要的。

And nature to be commanded must be obeyed.

想要支配天性，必先服从天性。

[A] privacy protection must be secured at all costs.

要不惜一切代价保护隐私。

" Someone must be upstairs, " said Injun Joe.

“楼上肯定有人。印江·乔说。

At this hour? You must be kidding!

现在这个时间吗？你一定在开玩笑！

True enough, but trust and respect must be earned.

”福尔德曼警告道。他说的没错，但信任与尊敬不可或缺。

You must be Leonard's mother. Oh, I don't know if I must be, but yes.

你一定是兰纳德的母亲。噢，不知道是不是非得是，不过是的。

About time. -You must be so relieved.

是时候了。-你一定如释重负。

Seems like it must be hereditary.

看来是家族遗传。

And that means that the nucleus must be intact.

这就意味着细胞核必须保持完整。

Yeah, we must be getting old and grey.

是的，我们无法抵抗岁月的侵袭。

They must be available quickly and accurately.

它们必须要能够很快和准确的提供。

What a blessed land that must be!

那一定是个非常幸福的国度！

Must be enormously difficult to accommodate that inclination.

要满足这种喜好恐怕是相当困难.