Most school districts do not test their water because of the costs associated with lead remediation, said Marc Edwards, a civil engineer at Virginia Tech.
在弗吉尼亚理工大学的土木工程师马克·爱德华兹说，大多数学区因为铅治理的费用而不检测他们的饮用水。
I was the lead engineer for this project of Mobil 1 One Million Kilometer Mercedes-Benz Test.
我是美孚1号梅赛德斯百万公里测试项目的首席工程师。
I was the lead engineer for this project of Mobil 1 One Million Kilometer Mercedes-Benz Test.
我是美孚1号梅赛德斯百万公里测试项目的首席工程师。
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