US regulators investigating Volkswagen have uncovered excessive emissions levels in thousands of luxury Porsches and Audis, extending their probe to diesel sports utility vehicles the German carmaker had not previously admitted were caught up in the scandal.
正对大众汽车(Volkswagen)展开调查的美国监管机构发现，有数千辆保时捷(Porsches)和奥迪(Audi)豪车排放水平超标，美方的调查对象由此扩大到这家德国车企旗下的柴油引擎运动型多功能车(SUV)。大众之前并未供认这类车也卷入了尾气造假丑闻。
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