习以成性 xí yǐ chéng xìng

DEFINITIONS

  1. deeply ingrained
  2. steeped in

CHARACTERS

习 xí
HSK 1
practice; flapping wings
以 yǐ
HSK 2
by means of; thereby, therefore; consider as; in order to
成 chéng
HSK 3
completed, finished, fixed
性 xìng
HSK 4
nature, character, sex