discreet

审慎的询问

A question or investigation made carefully and without attracting attention.

小心进行且不引人注意的提问或调查。

适当的距离

A distance that is far enough to be polite or to avoid being noticed.

为了礼貌或避免被注意到而保持的足够远的距离。

低调的广告

An advertisement that is subtle and does not attract wide attention.

一种微妙且不引人注目的广告。

谨慎的遮掩

A veil that provides concealment or modesty in a subtle manner.

比喻义：一种巧妙隐藏或掩盖某事（通常是信息）的方式。