You must carry ID at all times.

你必须随身携带身份证件。

You must be home by 11 o'clock.

你必须在11点之前回家。

You must get home before curfew.

你必须在实行宵禁以前回到家中。

You must get it in writing.

你必须用书面的形式。

You must give one month's notice.

你必须一个月前发出通知。

You must see a doctor, Frederick.

弗雷德里克，你一定得看医生。

"You must be freezing," she said.

“你一定冻坏了吧，”她说。

You must stand up for your rights.

你必须维护自己的权利。

"You must think I'm a real idiot."

“你一定认为我是个十足的傻瓜。”

You must arrive at the time stated.

你必须在规定时间到达。

You must act boldly and confidently.

你必须表现得大胆、自信。

You must have felt a proper charlie!

你一定觉得自己是个十足的笨蛋！

You must be boiling in that sweater!

你穿着那件毛衣一定很热！

You must obey the captain's commands.

你必须服从船长的命令。

"You must be Emma," said the visitor.

“你一定是埃玛,”来访者说道。

"Go! Please go."—"You must be joking!"

“走吧！请走吧。”—“你一定是在开玩笑！”

You must play a spade if you have one.

你如果有黑桃牌，就必须打出来。

You must be starving, you poor things.

你们一定是饿坏了，你们这些可怜的家伙。

You must try harder.

你得更加努力。

You must find a job.

你必须找到一份工作。

You must play a diamond if you have one.

如果你有方块就必须出。

You must try to learn from your mistakes.

你得从所犯错误中吸取教训。

Come on now. You know you must be hungry.

好了。你看你一定是饿了。

It's from my boyfriend, if you must know.

倘使你一定要知道的话，这是我男朋友给的。

You must have found my attitude annoying.

你一定觉得我的态度让人烦。

You must not agree to do it. Don't weaken.

你们一定不能同意做这件事。别心软。

You must ask one or other of your parents.

你必须问你的父亲或母亲。

You must be hungry after all that walking.

走了这么远的路，你一定饿了吧。

You must drop your speed in built-up areas.

在房屋密集区必须放慢速度。

You must complete three written assignments.

你必须完成三个书面作业。