There's no accounting for taste. [口]人的爱憎好恶无法解释(=There is no explanation for people's preferences)。例：- Why is Doug going out with that awful woman? 为啥道格和那个烂女人谈恋爱呢？ - Like they say, Rosie, there's no accounting for taste. 萝卜白菜，各有所爱。