自不必说 zì bù bì shuō

DEFINITIONS

  1. to not need dwell on (idiom)

CHARACTERS

自 zì
HSK 3
self, private, personal; from
不 bù
HSK 1
no, not; un-; negative prefix
必 bì
HSK 3
surely, most certainly; must
说 shuō
HSK 1
speak, say, talk; scold, upbraid