Self-praise is felt to be impolite.

自夸被认为是不礼貌的。

I think you need not to be impolite to her.

我认为你没必要对她讲礼貌。

It would be impolite for me to reject your kind invitation.

既然你如此盛情相邀,我就却之不恭了.

That would be impolite, of course, heading into the series opener Monday at Staples Center.

这样将不礼貌, 当然, 直指周一在四台普斯球场的第一场比赛.

Crossing your legs in the United States is completely natural; sitting in the same position in Kuwait may be impolite.

在美国翘二郎腿是很自然的，但在科威特人面前却是一种冒犯。

Don't say what you think the other person wants to hear because you don't want to be impolite or hurt their feelings.

别说你认为别人想听的话，因为你不想没礼貌或伤害别人。