mi·gra·tion
noun OPAL W
/maɪˈɡreɪʃn/
/maɪˈɡreɪʃn/
[uncountable, countable]- the movement every year of large numbers of birds or animals from one place to another
（鸟兽的）迁徙 - the seasonal migration of blue whales
蓝鲸的季节性洄游 - the migration routes of birds
鸟类的迁徙路线
Oxford Collocations Dictionaryadjective- seasonal
- autumn
- fall
- …
- wave
- occur
- take place
- increase
- …
- path
- pattern
- route
- …
- migration from
- migration to
- the seasonal migration of blue whales
- migration (from…) (to…) the movement of people to a new country or area in order to find work or better living conditions
（为工作或改善生活状况的）移民，移居，迁居 - migration from rural to urban areas
从农村到城区的迁移 - It was one of the largest mass migrations in US history.
这是美国历史上最大规模的移民之一。 - Net migration— more people moving to the state than leaving—accounts for about two thirds of the population gain.
净移民（迁入该州的人数多于离开该州的人数）约占人口增长的三分之二。
Extra ExamplesTopics Social issuesc1- The decline of the rural economy has caused urban migration.
农村经济的衰退已经导致许多人向城市迁移。 - the forced migration of enslaved Africans
被奴役的非洲人被迫迁移 - the great waves of migration that took Europeans to the New World
把欧洲人带到新大陆的一波波巨大的移民潮
- migration from rural to urban areas
- the act of moving programs, etc. from one computer system to another; the fact of changing from one computer system to another
（程序或硬件的）迁移，转移；（计算机系统的）改变