"prim and proper" in Chinese (Simplified)
一本正经拘谨
Definition
形容一个人非常端庄守礼，总是遵守社会规范，有时显得过于拘谨或正式。
Usage Notes (Chinese (Simplified))
多带有轻微批评、半开玩笑色彩，形容过于拘谨、过分正经的人，常用于女性或长辈。常搭配'act'、'look'等动词。
Examples
She is always prim and proper at work.
她在工作中总是**一本正经**。
My grandmother is really prim and proper.
我的奶奶非常**拘谨**。
He sits prim and proper at the dinner table.
他在餐桌上坐得**一本正经**。
You don't have to be so prim and proper all the time. Just relax!
你不用总是那么**一本正经**，放松点嘛！
Whenever he's around strangers, he acts all prim and proper.
每当有陌生人在场，他就变得**一本正经**。
She's so prim and proper that she even irons her socks.
她**拘谨**到连袜子都要熨烫。