Roughly three-quarters of the US population growth that did occur over the past decade was due to immigrants, according to an analysis of census data by the Center for Immigration Studies.

按照由美国移民研究中心对于人口调查数据的分析，在过去十年中，大约四分之三的美国人口增长要归功于移民。

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"These people aren't doing anything in violation of our laws," said Mark Krikorian, the executive director of the Center for immigration Studies, which advocates tougher immigration controls.

Mark是移民研究中心的执行人，他说这些人并没有做违法的事情，他是主张对移民采取更加严格限制的人士。

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“These people aren't doing anything in violation of our laws,” said Mark Krikorian, the executive director of the Center for Immigration Studies, which advocates tougher immigration controls.

Mark是移民研究中心的执行人，他说这些人并没有做违法的事情，他是主张对移民采取更加严格限制的人士。

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Janet Kephart with the Center for Immigration Studies in Washington disagrees.

VOA: standard.2010.04.12

Mark Krikorian is with the Center for Immigration Studies, which wants lower immigration levels.

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Mark Krikorian of the Center for Immigration Studies alleges the system can be finagled.

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Steve Camarota, of the Center for Immigration Studies, says that kind of system threatens to enshrine a subclass of foreign workers.

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