Talking to or goading the opponent and discourteous behaviour .

辱骂或刺激对手及其它不礼貌的行为。

A discourteous manner that ignores accepted social usage .

不顾及一般社会约定的无礼的行为方式。

It 's discourteous not to extend a greeting .

不打个招呼的话是失礼哦。

A distant and at times discourteous young .

冷漠的、有时有点粗鲁的年轻人。

Be courteous - even when people are most discourteous to you .

要有礼貌即使当别人对你最不礼貌的时候。