swan

A white swan glided silently across the lake. ▶

一只白天鹅悄无声息地游过湖面。

Protecting wetland habitats benefits swan populations while also preserving the wider ecosystems on which many other species depend.

保护湿地栖息地有益于天鹅种群，同时也能保护许多其他物种赖以生存的更广泛生态系统。