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More recently, while examining housing construction, the researchers discovered that illiterate non english speaking mexican workers in houston, texas, consistently met best practice labor productivity standards despite the complexity of the building  industry's work.

尽管建筑业的工作很复杂，但是德克萨斯州休斯顿是那些不识字，不会说英语的墨西哥工人，却始终能达到劳动生产力的最佳实践标准。