They must have planted many explosives there.

他们一定在这里埋了很多炸药。

Enterprise must have a reservoir of cheap labour.

企业应储备廉价的劳动力。

Those jewels must have cost a small fortune.

那些珠宝一定花了不少钱。

You must have left the keys someplace else.

你一定是把钥匙落在别的什么地方了。

It must have been terrible for the survivors.

对于幸存者来说那一定十分可怕。

That must have cost you a tidy sum.

那必定让你花了一大笔钱。

A boisterous horse must have a rough bridle.

烈马要套粗笼头。

I must have left my key in the ignition.

我肯定是把车钥匙忘在点火开关上了。

You must have cut yourself when shaving this morning.

你早上刮胡子时一定刮破了。

His cousinly love must have been greater than his passion.

他的表亲情谊一定是大于他自己的激情。

People who are on a diet mustn't have chocolate.

正在节食的人不能吃巧克力。

I must have a blitz to get my room tidy.

为把房间搞整洁我必须做好多活。

I must have misunderstood—I thought you were anxious to leave.

我一定误会了——我以为你急着要走。

The police must have a search warrant to search a house.

警察要搜查一座房屋必须有搜查证。

The sick boy had an unhealthy flush and must have contracted pneumonia.

病孩子脸上有一种不健康的红晕,一定是感染上肺炎了。

Bobby must have it his way and play the game by his rules.

鲍比一定要按自己的方式和自己的规则办事。

Ceratin people are sensitive to gluten (celiac disease) and must have a gluten-free diet.

某些对谷蛋白敏感（乳糜泻患者）的人必须食用不含谷蛋白的食物。

He must have heard it—that doorbell’s loud enough to wake the dead.

他肯定听见了，门铃声大得能把死人吵醒。

Tom grassed his opponent with a well-placed blow. Bill must have grassed on us.

比尔肯定把我们出卖了。

Something must have happened to her. She has been sitting there musing for hours.

"她一定是有什么事了,一连几小时坐在那里沉思默想。"