他好坏不分。

He doesn't know the difference between right and wrong.

Source: Tatoeba

Sentence Composition

1 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
2 好坏 hǎohuài
  1. good or bad
  2. good and bad
  3. standard; quality
  4. (coll.) very bad
3 不分 bùfēn
  1. not to distinguish; to make no distinction
  2. (LGBT slang) versatile (open to either penetrative or receptive role)