serenity

n. /səˈrenəti/ C1

宁静；平静

The quality of being calm, peaceful, and untroubled.

仙境例句

After all the splashing, the pool lay calm, and its serenity made the Mouse feel safe.

一阵扑腾过后，池水平静下来，这份安宁让老鼠觉得很安心。