熟稔

shúrěn
(literary) to be very familiar with (sb or sth); well acquainted with; fully conversant with

CEDICT

literary

Entry Composition

1 熟 shú
  1. ripe; mature
  2. thoroughly cooked; done
  3. familiar; acquainted
  4. experienced; skilled
  5. (of sleep etc) deep; profound
  6. also pr. shóu
2 稔 rěn
  1. (literary) ripe grain; ripe; harvest; year
  2. (literary) very familiar with; well acquainted with