exercise

n.练习；锻炼 vt.实施；锻炼 vi.练习，锻炼

excusably, excuse, excuse oneself from, excuse sb. for sth., execrable, execrably, execrate, execration, execute, execution, executioner, executive, executor, exegesis, exemplar, exemplary, exemplification, exemplify, exempt, exemption, exercise book, exercise-book, exert, exert oneself to, exertion, exeunt, exhalation, exhale, exhaust, exhausted, exhaustion, exhaustive, exhaustively, exhibit, exhibition, exhibitioner, exhibitionism, exhibitionist, exhibitor, exhilarate,