The boy has no manners at all.

那个男孩根本不懂礼貌。

youdao

This child has no manners.

这孩子真没规矩。

youdao

Mind your manners — it is impolite to have no manners.

注意你的礼貌——这样不讲礼貌是不好的。

youdao

Expect to be stunned by how conservative the town is in its outward manners, no matter how fierce the partisan debates.

ECONOMIST: Business travel

Not only does he not get how much he is shortchanging his company by ignoring women as Dell flails, but he also doesn't get it that no matter how rich you are, manners are always a good thing.

FORBES: Magazine Article

Home is no less fraught: Uxbal is an adoring, manners-correcting father to Ana (Hanaa Bouchaib) and Mateo (Guillermo Estrella), but his estranged wife, Marambra (Maricel Alvarez), is a ruin, jagged with drink, who cannot be trusted with the kids.

NEWYORKER: Miles To Go