愣幹

to do things recklessly / to persist in doing sth in one's own way

to look distracted / to stare blankly / distracted / blank / (coll.) unexpectedly / rash / rashly

tree trunk / main part of sth / to manage / to work / to do / capable / cadre / to kill (slang) / to fuck (vulgar) / (coll.) pissed off / annoyed