stump

n.树干；残株 v.沉重地走

studied, studio, studio couch, studio flat, studious, studiously, studiousness, study, stuff, stuff up, stuff with, stuffed bird, stuffily, stuffiness, stuffing, stuffy, stultification, stultify, stumble, stumbling-block, stumpiness, stumpy, stun, stung, stunk, stunned, stunner, stunning, stunningly, stunt, stunt man (fem 阴性作 `stunt woman), stupefaction, stupefy, stupendous, stupendously, stupid, stupidity, stupidly, stupor, sturdily,