入木三分

written in a forceful hand / penetrating / profound

to enter / to go into / to join / to become a member of / to confirm or agree with / abbr. for 入聲|入声[ru4 sheng1]

(bound form) tree / (bound form) wood / unresponsive; numb; wooden

three / 3

somewhat / to some degree

to divide; to separate / to distribute; to allocate / to distinguish (good and bad) / (bound form) branch of (an organization); sub- (as in 分局[fen1 ju2]) / fraction / one tenth (of certain units) / unit of length equivalent to 0.33 cm / minute (unit of time) / minute (angular measurement unit) / a point (in sports or games) / 0.01 yuan (unit of money)

part / share / ingredient / component