migrations

And potential refugee migrations to the United States from the Caribbean region could impact U. S. homeland security, he said.
他说，来自加勒比地区潜在的难民潮有可能影响美国的国土安全。
All seem to be at their peak abundances during their spring (and presumably fall) migrations (Feb-Mar).
这几种银鸥似乎都是在春过境（二月到三月）时达到数量高峰（推测秋过境也是）。
Ratha, manager of the Bank's Migrations and Remittances unit, says a government should view its diaspora like "an untapped pool of oil. "
世界银行移民与汇款局局长Ratha说，政府应将其散居侨民视为“未开发的石油资源”。
Using this tool, as you will soon see, allows you to perform your AIX migrations without the need for lengthy outages.
您很快就会看到，通过使用这个工具，您的迁移过程将不会导致长时间的服务停用。
To lose the long-distance migrations performed by some species would be a grievous diminution.
失去由某些物种执行的长距离迁徙活动将是令人痛心的衰退。
The glass wing is also noted for its long migrations and the fact that the males of the species, when about to meet, practice lekking.
玻璃翅也因它长长的迁徙而著称，并且两种雄性要相遇时，就会求偶集会。
Rails will believe the database is up to date, because you already copied over the schema_migrations table.
Rails将认为数据库是最新的，因为您已经复制了schema_migrations表。
Some, like the two Elwha dams, were built without fish ladders, meaning they serve as completely impenetrable barriers to fish migrations.
一些大坝和这两座埃尔瓦河大坝一样在建造的时候缺乏鱼梯设计，就是说它们完全阻碍了鱼群的洄游。
Migrations are common from rural areas to nearby cities for the same reason, a step up in lifestyle.
移民普遍是由于同样的理由从农村地区迁移到附近的城市，一个生活方式的提高。
Each year, the Serengeti Plains in Tanzania play host to one of the greatest animal migrations on earth.
每年，坦桑尼亚的赛伦盖蒂平原是地球上上演最壮观的动物迁徙的地点之一。