1N-COUNT (数学中的)公分母 In mathematics, a common denominator is a number which can be divided exactly by all the denominators in a group of fractions. (数学中的)公分母
2N-COUNT 共同点 A common denominator is a characteristic or attitude that is shared by all members of a group of people. 共同点
I think the only common denominator of success is hard work.