back-breakingBrE/ˈbæk breɪkɪŋ/NAmE/ˈbæk breɪkɪŋ/adjective(ofphysicalwork体力劳动) veryhardandtiring艰苦繁重的;累死人的Descriptive compound adjectives with parts of the bodyback-breaking,ear-splitting,eye-popping,gut-wrenching,hair-raising,lung-busting,jaw-dropping,mind-boggling,nail-biting,rib-tickling,side-splitting,spine-chilling,stomach-churning,toe-curling