The report, by the immigration agency's national intelligence unit, was passed to the Guardian by a source concerned that too little action was being taken to tackle the problem.

卫报从某一渠道得到了这份由出入境事务处国家情报单位做出的报告文件，该渠道认为为解决儿童贩卖事件采取的行动太少。

youdao

However, when asked if immigration was a problem or an opportunity, more Germans saw as it as a problem (as did a big majority of Americans and Britons).

然而，当被问及移民对国家而言是问题或是机遇时，更多的德国人却认为是问题的来源(大部分的美国人与英国人也持相同态度)。

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It was both a labor problem and an immigration problem thousands of Chinese workers had been brought to America to help build the Central Pacific Railroad.

VOA: special.2010.03.11

Many civil rights organizations support the president and say it is the only answer to combating the immigration problem in the America.

VOA: standard.2010.05.08

But immigrant rights activists claim that closing the Calais camp does not solve France's illegal immigration problem, because many illegals simply move down the coast.

VOA: standard.2009.09.22

Solving the immigration problem is crucial to the country and to the GOP, Mr. Rubio said.

WSJ: Rubio Gains GOP Influence

Their idea is simple: Solve the immigration problem by allowing more legal migration.

FORBES: The GOP Battle Over Immigration Policy

These principles are crucial for solving today's illegal immigration problem and ensuring that it never happens again.

WSJ: Marco Rubio: The Immigration Reform Opportunity