oil and water
水火不相容的人或事物
口语·形容无法相处的人或物
英文释义
two things or people that are fundamentally incompatible or do not mix well
例句
Those two are like oil and water; they never get along.
典故来源
源自物理现象：油和水无法混合，比喻性格或事物根本不相容。