基本解釋num.五分之一同根派生 one-fifth相關(guān)詞英漢例句用作數(shù)詞 (num.)He passed me one fifth of the cake.他遞給我五分之一個蛋糕。Three years ago, it was one in five.而三年前,這個比例是五分之一。one-fifth更多例句