emigration

n.向国外移民

embroil, embryo, embryology, embryonic, emcee, emend, emendation, emerald, emerge, emergence, emergency, emergency-room, emergent, emeritus, emery, emery-board, emery-paper, emetic, emigrant, emigrate, emigre, eminence, eminent, eminently, emir, emirate, emissary, emission, emit, emollient, emolument, emote, emotion, emotional, emotionally, emotionless, emotions, emotive, empanel (also impanel), empathetic,