propriety

她在公共场合的言行总是符合礼仪规范。

Her behavior in public always adheres to the highest standards of ___propriety.

董事会对首席执行官收受供应商昂贵礼物的妥当性提出了质疑。

The board questioned the ___propriety of the CEO accepting lavish gifts from a supplier.

这位年轻外交官在紧张谈判中得体的举止受到了赞扬。

The young diplomat was praised for her ___propriety during the tense negotiations.