泳裤在英语中叫作 "swim briefs"。它来源于法语，"briefs" 指的是内裤。在这里，它指的是一种特定类型的泳衣，通常比普通泳衣更紧身。它可以防止水在泳衣里面游动，从而提高泳速。例句：

I always wear swim briefs when I go swimming.

(我去游泳时总是穿泳裤。)

The swim briefs are made of high-quality fabric that is both durable and comfortable.

(泳裤是用优质面料制成的，既耐用又舒适。)

The swim briefs are available in a variety of colors and sizes to suit everyone's needs.

(泳裤有多种颜色和尺寸可供选择，以满足每个人的需求。)