但谁又能保证他们绝不使用不文明语言？

But who guarantee that they never use foul language?

youdao

举止得体、服务周到、使用文明规范语言。

Good manners, and thoughtful service, using the language of civilized norms.

youdao

请使用文明的语言和避免冲突。

Please avoid comments with inappropriate languages and avoid post wars.

youdao

在电话中使用文明礼貌的语言是很重要的。

It's very important to sound polite on the telephone.

youdao

在电话中使用文明礼貌的语言是很重要的。

It's very important to sound polite on the telephone.

youdao