柯林斯詞典cube root (cube roots) 1. N-COUNT The cube root of a number is another number that makes the first number when it is multiplied by itself twice. For example, the cube root of 8 is 2. 立方根[usu sing, 'the' N 'of' n] 返回 cube root劍橋詞典The cube root of a number is another number that, when multiplied by itself twice , makes the first number . 立方根 The cube root of 125 is 5, because 5 x 5 x 5 = 125. 125的立方根是5，因爲(wèi)5×5×5=125。 返回 cube root