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.

在正式会议上，他的措辞总是很得体。

His choice of words always maintains perfect ___propriety during formal meetings.

在正式场合中，他总是注意保持举止得体。

He always pays attention to maintaining ___propriety in formal occasions.