在什么什么中用英文表达是：In what；

In：prep. 在(某范围或空间内的)某一点; 在(某物的形体或范围)中; 在…内; 在…中; 进入。

what：pron./det. 什么; …的事物; 无论什么; 凡是…的事物; 多么; 真; 太。

You should be more guarded in what you say to reporters.

你对记者说话应更谨慎些。

There is a fine line between showing interest in what someone is doing and interfering in it.

关心别人正在做的事情和进行干预之间存在着细微的差别。

I admire his passionate belief in what he is doing.

我佩服他对自己的工作所抱的坚定信心。

There is not a scintilla of truth in what she says.

她的话没有半句可信。

They were more concerned with how the other women had dressed than in what the speaker was saying.

她们对别的妇女的衣着打扮比对发言人的讲话更加感兴趣。