In China, car driving with headlight on during the day time is viewed as very impolite to others (both to other drivers and to pedestrians), but in U. S.

在中国，白天开车还开前大灯会被视为对其他人（包括驾驶员和行人）的不礼貌。

youdao

It's a very easy, very direct, not at all impolite way to express your desires in any situation.

这是个非常简单而直接的句型，用这样的句型在各种情形下表达你的愿望也不会显得不礼貌。

I want to 课堂 - SpeakingMax英语口语达人

It's a really disgusting habit and you have to stop doing this. It's so impolite.

这真是个令人作呕的习惯。你一定要改掉。这样太没礼貌了。

have to 实战 - SpeakingMax英语口语达人

It's considered impolite to hand a name card to someone using one hand.

ECONOMIST: Business travel

The release fittingly begins with "Just Impolite, " showcasing Plushgun's penchant for electro-pop and introspective narratives.

NPR: Plushgun: 'Just Impolite'

The impolite truth is that Robert Forster was The Go-Between's lesser half.

NPR: Go-Betweens' Robert Forster Goes Solo