一定是

Ivy must be a glutton for punishment.

艾维一定是个不怕吃苦的家伙。

I must have been a horrid little girl.

我一定是个人见人烦的小女孩。

"Must have been a fiddly job." — "You can say that again."

“那一定是件精细活。”——“说得太对了。”

The man must be bonkers to take such a risk.

这人一定是疯了，居然去冒这种风险。

"You must be expecting a young man," she teased.

“你一定是在等哪位小伙子吧，”她揶揄道。

She must be ill, Tatiana thought.

她一定是病了，塔蒂亚娜心想。

I really must be quite mad!

真的，我一定是气坏了！

Her orbital speed must be a few hundred meters per second.

其轨道速度一定是在每秒几百米。

"His memory must be completely back, then?" — "Just about."

“这么说，他的记忆一定是完全恢复了？”——“差不多。”

The stars must have formed 10 to 15 billion years ago.

这些恒星一定是形成于100到150亿年前。

He decided Franklin must be suffering from a bad cold.

他断定富兰克林一定是得了重感冒。

I just said to him "you must be mental".

我刚才对他说：“你一定是疯了。”

I guessed from his name that Jose must have been Spanish.

根据他的名字我猜测何塞一定是西班牙人。

The results were not to be taken as gospel.

别以为这些结果就一定是正确的。

Beth's incoherence told Amy that something was terribly wrong.

贝丝语无伦次，艾米知道一定是出了很严重的事。