地铁公司的总经理John B. Catoe Jr.说，事发当时其中一列列车正停在站台边，等待发出驶出的命令，就在这时它被另一列来自后方的列车撞上了。

The general manager of the Metro system, John B. Catoe Jr., said one train had stopped at a platform and was waiting for permission to proceed when it was hit from behind by the second train.

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他们接到骚扰敌人后方的命令。

They received the order to harass the enemy's rear.

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