KENNY's shoulder is an organ that got crushed by a huge metal door. Oh my God, it. . . .
to bear on one's shoulders
双 (pair) + 肩 (shoulder)
= 双肩 (to bear on one's shoulders)
to bear a burden, a responsibility.
肩 (shoulder) + 車 (car)
= 肩車 (piggy-back ride)