一 + 个 + 错误
The noun 错误 (cuòwù) means 'error,' 'mistake,' or 'fault' and refers to something that has been done incorrectly. It is commonly used with classifiers like 个 and appears in formal writing, news, and everyday speech. It can be preceded by adjectives or quantifiers to specify the nature or number of mistakes.
每个人都会犯错误,重要的是能改正。
Měi gè rén dōu huì fàn cuòwù, zhòngyào de shì néng gǎizhèng.
Everyone makes mistakes; what matters is being able to correct them.
这篇文章里有好几个错误。
Zhè piān wénzhāng lǐ yǒu hǎo jǐ gè cuòwù.
There are several mistakes in this article.
他终于意识到了自己的错误。
Tā zhōngyú yìshí dào le zìjǐ de cuòwù.
He finally realized his mistake.