migrate [mai'ɡreit; 'maiɡ-] vt.1. 迁移;移居(尤指移居外国):Wealthy people often migrate in winter to warmer sunnier countries.有钱人冬天常移居到天气较暖和的、阳光更充足的国家。to migrate to town from rural districts从农村向城市迁移2. (候鸟等)迁徙,移栖;(鱼类)回游:These birds migrate northwards in spring and southwards in fall.这些鸟春天向北移栖,秋天向南移栖。Many birds migrate southward every winter.许多鸟类每年冬季都移栖南方。3. (农业季节工人)外出到处找工作:These workers migrate from country to country in search of work.这些工人为寻找工作从一个国家迁移到另一个国家。4. 【化学、物理学】移动,徙动immigrate ['imiɡreit] vi.(从外国)移入,移居入境;作为移民定居:Many Jews immigrated into the United States.许多犹太人移居美国。vt.使移居入境,使作为移民入境定居特别注意:两个词的意思相反!!!