1、
不要当众发怒, 不耐心, 或者不尊敬.这样的不礼貌永远不会被对对方原谅.
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2、
In addition , impoliteness, which occurs often and should have been studied aslong been neglected.
然而尽管如此, 所有这些研究都或多或少地存在缺陷.
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3、
4、
