which is which 释义 哪个是哪个 例句 1·They all look so alike to me that I'm never sure which is which . 它们在我看来简直一模一样,我永远分不清哪个是哪个。 《柯林斯英汉双解大词典》 2·Now which is which ? 现在,哪个是哪个呢? 3·The twins are so alike I can't tell which is which . 这一对双胞胎长得一模一样,我分不清谁是谁。 《牛津词典》