If you swirl something liquid or flowing, or if it swirls, it moves round and round quickly.
例句
She smiled, swirling the wine in her glass...她微笑著，旋動著杯子里的葡萄酒。The black water swirled around his legs, reaching almost to his knees...黑乎乎的臟水在他腿邊打著旋，幾乎快要沒到了膝蓋。