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

嘴里吃着东西说话是不貌的。

It was a case of monumental bad-manners.

那是极不貌的事例。

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

盯着姑娘的脸瞧是不貌的。

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

嘲笑外国学生的英语是不貌的。

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

对吐舌头是不貌的。

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

"如今们,尤其是好象不那么讲貌了。"

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

不提问讲者是不貌的。

It is impolite to get a word in.

别谈话时插嘴是不貌的。

It’s impolite to make a tardy appearance.

晚到是不貌的。

It's not polite to howl down a speaker.

大喊大叫妨碍别的讲话是不貌的。

It is rude to grab a seat.

抢占座位是不貌的。

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

他不仅仅是不貌，而是无透顶。

It's rude to stare at people.

盯着看不貌。

It is rude to snatch.

攫夺是不貌的。

It is rude to point.

指指点点是不貌的。

It's rude to point.

用手指是不貌的。

It is rude to interrupt.

别的话，是不貌的。

S-politeness is insulting.

故意要表示貌等于是不貌。

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.

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