ˋㄗㄥㄈㄣㄇㄧㄥˊàizēng‑fēnmíng

爱憎分明
  1. 喜好憎惡態度立場非常鮮明 言談可知愛憎分明」、向來愛憎分明處理事情自有一套標準」。

to make a clear difference between what one likes and what one hates, to have well-defined likes and dislikes