How to write 博大精深博大精深

big; large; great; older (than another person); eldest (as in 姐); greatly; freely; fully; (dialect) father; (dialect) uncle (father's brother)

essence; extract; vitality; energy; semen; sperm; mythical goblin spirit; highly perfected; elite; the pick of sth; proficient (refined ability); extremely (fine); selected rice (archaic)

old variant of 深