West African countries do not limit immigration from their neighbours, so lots of people cross borders, for example from Ghana to oil-rich Nigeria.

西非国家对来自邻国的移民不加限制，这引发了大量人群跨越边界，涌入他国。 例如，从加纳到石油丰富的尼日利亚。

youdao

In a covert situation at an airport, people could conceivably undergo the initial assessment at check-in or immigration.

在机场的秘密位置，人们在检验口或入境处可以理解地接受初次测试。

youdao

Some people have even suggested we did not include Shanghai's fairly large immigration population. Around 5.1% of the population are migrants from rural areas.

我们并没有把上海庞大的新移民纳入考察范围，大约有5.1%的新移民来自农村，他们的子女并没有被测试。

youdao

More than twelve million people passed the statue between eighteen ninety-two and nineteen fifty-four on their way to the immigration center on nearby Ellis Island.

VOA: special.2009.06.29

They help people with translation services,tutoring, immigration paperwork and other work.

VOA: special.2010.02.01

One recent visitor said the Ellis Island immigration hall feels alive with the stories of people who left their native lands long ago to start a new life in a new country.

VOA: special.2009.06.29

IR There is certainly a sizeable minority of white Americans who appreciate the benefits to this country of immigration by people of diverse cultures.

ECONOMIST: Letters

And not only that, but it denigrates the value of legal immigration by people that stand in line for years to get to our country legally, you know.

NPR: Senators Grassley, Brownback on Immigration Reform

Last week, our new immigration cap for people coming here to work from outside the EU came into force.

BBC: In full: David Cameron immigration speech