1
be a person in the know
常用作表语，表示某人知情或了解内幕。
He is a person in the know about company policies.
他是公司政策方面的个中人。
个中人
先理解核心含义，再看它在真实句子里的用法。
个中人
someone who has inside knowledge or information about something
He is a person in the know about company policies.
他是公司政策方面的个中人。
If you want to know the latest company news, talk to Sarah — she's a person in the know.
如果你想了解公司的最新消息，去和莎拉谈谈——她是个中人。
The journalist was a person in the know about the upcoming policy changes.
那位记者是即将到来的政策变化的个中人。
Only a person in the know could have predicted the product launch date accurately.
只有个中人才能准确预测产品发布日期的。
常用作表语，表示某人知情或了解内幕。
He is a person in the know about company policies.
他是公司政策方面的个中人。
介词to后接该短语，表示向知情人咨询。
You should talk to a person in the know before making a decision.
在做决定之前，你应该跟个中人谈谈。
用作状语或同位语，强调其知情人身份。
As a person in the know, she warned us about the risks.
作为个中人，她警告过我们这些风险。
Not this
He is a person in know of the latest news.
Use this
He is a person in the know of the latest news.
短语 'in the know' 是固定搭配，必须包含定冠词 'the'，漏掉 'the' 会导致语法错误。
Not this
She is a person with the know about the project.
Use this
She is a person in the know about the project.
表达 '了解内情' 应用固定短语 'in the know'，而不是用 'with the know'，介词 'in' 在此表示处于知道信息的状态。
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