劍橋詞典[ 不可數(shù)或單數(shù)名詞：沒有復(fù)數(shù)形式的名詞 ] leather made from the skin of pigs 豬皮（革） pigskin gloves /shoes 豬皮手套／鞋 [ 可數(shù)名詞：有復(fù)數(shù)形式的名詞 ] US informal the ball used to play American football 橄欖球 返回 pigskin