The national transportation safety board is investigating the cause of Saturday's train collision in Missouri.

国家运输安全委员会正在对周六发生在密苏里的火车碰撞事故进行调查。

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The national transportation safety board is investigating the cause of Saturday's train collision in Missouri.

国家运输安全委员会正在对周六发生在密苏里的火车碰撞事故进行调查。

youdao