migration

n.迁移，移居；迁徙

midships, midst, midstream, midsummer, Midsummer's Day, midway, midweek, midwife, midwifery, midwinter, mien, miff, miffed, might, might (just) as well do sth., mightily, mighty, migraine, migrant, migrate, migratory, mikado, mike, milage, Milan, milch, mild, mild steel, mildew, mildly, mildness, mile, mileage, mileage (also milage), miler, milestone, milieu, militancy, militant, militarism,