英语自学网 发表于 2016-7-12 22:03:17

英语听力视频：美国私家车安装“黑匣子”

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          The Obama administration has approved a requestfrom the National Highway Traffic SafetyAdministration to require "black boxes" on all new cars sold in the U.S.. NBC'sCharles Hadlock reports.
        (编辑：何莹莹）
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