enter upon

开始，着手

ensemble, enshrine, enshroud, ensign, enslave, enslavement, ensnare, ensue, ensure, ensure (US insure), ensure sb. against, ENT, entail, entangle, entanglement, entente, entente cordiale, enter, enter for, enter into, enteric, enteritis, enterprise, enterprising, enterprisingly, entertain, entertainer, entertaining, entertainingly, entertainment, enthral (also esp US enthrall), enthrall, enthralling, enthralment (also esp US enthrallment), enthrone, enthronement, enthuse, enthusiasm, enthusiast, enthusiastic,