back-breaking

adj exhausting 使人筋疲力尽的: back-breaking work, effort, etc 使人筋疲力尽的工作、努力等.

baccy, Bach, bachelor, bacillus, back, back and forth, back away, back down, back down off, back down/off, back number, back of, back out of, back road, back room, back seat, back talk, back up, back-bench, back-bencher, back-formation, back-pedal, back-up, back-yard, backache, backbite, backbiter, backbiting, backbone, backchat, backcloth, backcomb (also tease), backdate, backdrop, backer, backfire, backgammon, background, backhand, backhanded,