The red snappers at the market looked very fresh, so we bought two.

snappers 是 snapper 的复数形式，snapper 是一种海鱼，中文通常翻译为"鲷鱼"或"笛鲷"。red snapper 特指"红鲷鱼"，是一种常见的食用鱼类，肉质鲜美。