etiquette

n. 礼仪,礼节,成规

Let us avoid the etiquette.
让我们免除礼节。
The forms of ceremony and etiquette observed by diplomats and heads of state.
外交礼节外交官和国家元首遵守的礼节和礼仪形式

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名词 etiquette:

rules governing socially acceptable behavior