illegal immigration

基本解释

All this adds up to slight tinkering, rather than the kind of retreat from multiculturalism seen in parts of Europe, or America’s harder line against illegal immigration.
所有这些都只是小修小补，而不像欧洲某些国家在多元文化上的倒退，或是美国对待非法移民时更强硬的措施。
A history of conflict and a present bedevilled by recession, drug-trafficking and illegal immigration should be reason enough to make relations across the Rio Grande decidedly fraught.
由于历史的冲突和目前让人困扰的经济衰退，贩毒和非法移民有足够的理由对跨越格兰德河的关系无疑变得更加让人担忧。
If we really want to get a handle on illegal immigration, we are going to have to reduce future levels of legal immigration so that over time, the social networks will become attenuated.
如果我们真想好好处理非法移民问题，就要不得不减少未来合法移民的数量，这样经过一段时间后，推动非法移民的人脉网络才会逐渐减少。

One reason for the speech was the state of Arizona's recent passage of its own law against illegal immigration.
Alan Bersin will supervise efforts to secure the border with Mexico and to slow illegal immigration.
They discussed the drug war in Mexico, illegal immigration and the world recession.

Efforts to prevent illegal immigration in the U.S. today are ignored, underfunded, openly violated or certifiably feckless.
FORBES: Illegals With Legal Rights

非法移民
The huge current of illegal immigration has penetrated every comer of the earth including China.
非法移民不是中国特有的问题，而是困扰世界各国，让世界难以回避的一个世界性难题。
政治学
非法入境