It's bad manners to talk with a full mouth.

嘴里吃着东西是不的。

It was a case of monumental bad-manners.

那是极不的事例。

It's not polite to stare at a girl in the face.

盯着姑娘的脸瞧是不的。

It’s impolite to gibe at a foreign student’s English.

嘲笑外国学生的英语是不的。

It's rude to put out your tongues at people.

对人吐舌头是不的。

"People, especially youngsters don't seem so polite these days."

"如今人们,尤其是年青人好象不那么讲了。"

It is not polite to interrupt a speaker with frequent questions.

不断提问打断演讲者是不的。

It is impolite to get a word in.

别人谈时插嘴是不的。

It’s impolite to make a tardy appearance.

晚到是不的。

It's not polite to howl down a speaker.

大喊大叫妨碍别人的讲是不的。

It is rude to grab a seat.

抢占座位是不的。

He wasn’t just impolite—he was downright rude.

他不仅仅是不，是无透顶。

It's rude to stare at people.

盯着看人不。

It is rude to snatch.

攫夺是不的。

It is rude to point.

指指点点是不的。

It's rude to point.

用手指人是不的。

It is rude to interrupt.

打断别人的，是不的。

S-politeness is insulting.

故意要表示等于是不。

Because rude behavior in children is more often the thoughtlessness than of deliberate aggression, criticism， namecalling and orders only make a child angry and defensive.

孩子的不行为往往是缺乏考虑的结果，不是故意冒犯别人，批评辱骂和命令只会使他们恼怒，产生抵触情绪。