decorum
n. 礼仪;礼貌;端正
例句
I was treated with decorum and respect throughout the investigation.
整个调查当中我受到了礼遇和尊重。
《柯林斯英汉双解大词典》
This is in keeping with the decorum of the game, of course.
这当然是为了在比赛中保持风度。
You've breached the decorum of my courtroomwith all this hooting.
你的这种叫嚣违反了本法庭的礼仪。