They were shocked by the impropriety of the young man's action.

他们为那年轻人的不当举止而感到震惊。

《新英汉大辞典》

Right now, the French can ill-afford even the whiff of impropriety.

目前，法国人承受不了哪怕一点点的行为欠妥。

youdao

There was no evidence of impropriety.

没有什么不当行为的证据。

youdao

There was no evidence of impropriety.

没有什么不当行为的证据。

youdao