tranquil

The lake's several tranquils reflected the surrounding mountains perfectly.

用法提示：tranquil作为名词复数形式，指多个平静的水面。

After the storm, the bay returned to its usual tranquils, inviting kayakers.

用法提示：tranquil作为名词复数形式，指平静的水域。

He spent hours painting the river's tranquils, each one a different shade of blue.

用法提示：tranquil作为名词复数形式，指河流中的平静区域。