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