migrations是什么意思？

migrations

• n. 迁移，移居( migration的名词复数 )；

例句

• This old so - called tribal nobility disappeared for the most part during the migrations or soon afterwards. 这种古代的 所谓 部落贵族,大多数在民族大迁徙中或在它以后不久便消灭了.
• They are sexually mature at this age and begin to participate in the breeding migrations. 在这个时候它们性征发育成熟并开始参与繁殖大迁徙.
• It foundered during the turmoils accompanying the Great Migrations. 它在随着民族大迁徙而出现的混乱中崩溃.

柯林斯高阶英汉双解学习词典释义

• VERB
  移居，迁徙(尤指到外地寻找工作或暂住一段时间)
  If people migrate, they move from one place to another, especially in order to find work or to live somewhere for a short time.
  例句
  People migrate to cities like Jakarta in search of work... 人们为找工作而迁移到雅加达这类城市里。 Farmers have learned that they have to migrate if they want to survive. 农民们已经认识到，想要生存就必须外出打工。
• VERB
  (鸟类、鱼类、兽类等随季节变化)迁徙
  When birds, fish, or animals migrate, they move at a particular season from one part of the world or from one part of a country to another, usually in order to breed or to find new feeding grounds.
  例句
  Most birds have to fly long distances to migrate. 绝大多数鸟类为了迁徙都不得不进行长距离的飞行。 ...a dam system that kills the fish as they migrate from streams to the ocean. 导致鱼类在从溪流向海洋迁徙途中死亡的水坝体系