柯林斯詞典nail file (nail files) 1. N-COUNT A nail file is a small strip of rough metal or cardboard that you rub across the ends of your nails to shorten them or shape them. 指甲銼 返回 nail file劍橋詞典a small strip of metal or paper with a rough surface used for making the edges of your nails smooth and curved 指甲銼 返回 nail file