immigration

noun

1. migration into a place (especially migration to a country of which you are not a native in order to settle there)

Synonym: in-migration

2. the body of immigrants arriving during a specified interval

e.g. the increased immigration strengthened the colony

1. 移居
Immigration is the coming of people into a country in order to live and work there.

e.g. The government has decided to tighten its immigration policy.
政府决定实施更加严格的移民政策。
e.g. ...immigration into Europe.
移居欧洲

2. 移民局检查处
Immigration or immigration control is the place at a port, airport, or international border where officials check the passports of people who wish to come into the country.

1. 移民：严格来说,在G类阅读中,没有任何与"移民"(immigration)有关的内容. 1.看题目要求(instructions)及题目的共同点,以决定看文章的详略程度几乎任何阅读考试均同时考查阅读速度(speed)与理解精确度(accuracy).

2.

2. 迁入：动物的扩散有3种形式:迁出(enigration)、迁入(immigration)和迁移(migration). 分离出去而不再归来的单方向移动称为迁出;进入的单方向移动称为迁入;周期性的离开和返回称为迁移. 迁移时动物往往集群行动,经过相同的路线,

3. 迁移：竞争与干扰作为演替发生的重要机制具有普遍性,所以城市的生态演替也就成了十分自然和普遍的事实,城市的扩张发展与内部结构的重新整合都反映出城生态空间的演替开始于迁移(immigration)和侵入(invation),