idiot

n. 傻子, 笨蛋

白痴

英文释义【The word "idiot" is a popular word to use when describing a person as stupid or careless, or when expressing unhappiness with another person's decision.】

例句：

The idiot is driving the wrong way on a one-way street.

那个白痴在单向大街上开错了路。

Mary says her boss is an idiot.

玛丽说她的老板是个白痴。

The word "idiocy" is also a noun. It describes a situation:

白痴；白痴的行为(更强调的是行为)

例句:

Human beings can't seem to shake the idiocy of war.

人类似乎无法摆脱战争的愚蠢感。

The word "idiotic" is an adjective.

例句:

That's an idiotic idea.

那是一个愚蠢的想法。

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ignorant

形容词:无知的，愚昧的

英文释义【A person who does not have basic knowledge or is not aware of important facts might be labeled as important.】

例句:

The driver claimed he was ignorant of the law when he was given a ticket by a police officer.

当警察给他一张罚单时，他声称他对法律一无所知。

Don't be so ignorant.

不要那么无知。

The word "ignorance" is a noun:

例句:

Ignorance of the law is no excuse.

不懂法律不能成为借口。