Also left unexplained was why railway signals did not stop the second train before it hit the first one.

另外，在第二辆列车冲向第一辆列车前，为何没有铁路信号加以阻止。这也同样令人匪夷所思。

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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.

地铁公司的总经理John B.CatoeJr.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。

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And then the second train was delayed.

后来第二班火车又晚点了。

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And then the second train was delayed.

后来第二班火车又晚点了。

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