单词学习：swan 名词/动词
swan
/swɒn/
天鹅；闲荡，悠游
Mr. Gu saw a beautiful swan gliding across the lake during his morning walk.
顾老师早上散步时，看到一只美丽的天鹅在湖面上优雅地滑行。
单词卡片
卡片已就绪
