How foolish I am to entertain doubts.

我心存疑虑是多么愚蠢啊。

It would be foolish to raise hopes unnecessarily.

无缘无故地寄托希望是愚蠢的。

It would be foolish to generalize from a single example.

仅从一个事例进行归纳的做法是愚蠢的。

How could she have been so foolish as to fall in love with him?

她怎么这么傻，竟爱上了他？

The accident was my fault— it would be foolish to pretend otherwise.

这次事故是我的过失—装作没有责任那才傻呢。

Any action on the basis of such fragmentary evidence would be foolish.

任何依据这些破碎证据的行动都将是愚蠢的。

I feel that I am very foolish.

我感觉我很傻。

Don't ask foolish questions.

别问愚蠢的问题。

Foolish men have foolish dreams.

傻人有傻人的美梦。

Don't do anything foolish.

不要做傻事。

It's a foolish question.

这是一个愚蠢的问题。

They called him foolish.

他们认为他很傻。

Oh, how foolish I was!

咳，我多么愚蠢!

Before I was foolish.

以前我很傻。

The boy is foolish.

这男孩是愚蠢的。

But is he foolish?

但他愚蠢吗？

Better a witty fool man than a foolish wit.

宁做聪明的傻子，不做愚蠢的聪明人。

Can you persuade her out of her foolish plans?

你能劝她放弃那些愚蠢的计划吗？

You ought to be ashamed of your foolish behavior.

你应当为你的愚蠢行为感到羞耻。

You ought to be ashamed of your foolish behaviour.

你应当为自己的愚蠢行为而感到羞耻。

"Enough of your foolish chatter," said the waggoner.

“别再愚蠢地喋喋不休了。”车夫说。

It was foolish to take the test without preparation.

没有做准备就去考试是愚蠢的。

An adult can sometimes act as foolish as a little child.

大人有时也会像小孩那样愚蠢行事。

It was rather foolish, but we all get so when we get angry.

这相当愚蠢，但我们生气的时候都会这样。

His foolish behaviour may put his whole future in jeopardy.

他的愚蠢行为可能会危及他的整个前程。

I am very sorry indeed for my foolish and ungrateful conduct.

我实在为我的愚蠢和忘恩负义的行为感到非常抱歉。

That foolish deed of his will remain a blot on his escutcheon.

他的那种愚蠢行为将永远是他名誉上的污点。

For the same foolish reason, I have lost the sight of both eyes.

出于同样愚蠢的原因，我双目失明了。

I felt foolish and a failure.

我自觉是个愚蠢的失败者。