That's the problem lawmakers are wrestling with amid hearings and federal investigations of the Upper Big Branch mine blast in West Virginia and the BP oil rig collapse in the Gulf of Mexico.
在西弗吉尼亚州煤矿爆炸和英国石油公司在墨西哥湾的钻井平台漏油事故的听证会和联邦调查中，这就是国会议员们正在努力解决的问题。
That's the problem lawmakers are wrestling with amid hearings and federal investigations of the Upper Big Branch mine blast in West Virginia and the BP oil rig collapse in the Gulf of Mexico.
在西弗吉尼亚州煤矿爆炸和英国石油公司在墨西哥湾的钻井平台漏油事故的听证会和联邦调查中，这就是国会议员们正在努力解决的问题。
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