他们吸收各种在双塔楼废墟中的有害粉尘、烟雾、化学物质，第三座大楼倒下。
They breathed a harmful mix of dust, smoke and chemicals in the ruins of the twin towers and a third building that fell.
他们吸收各种在双塔楼废墟中的有害粉尘、烟雾、化学物质，第三座大楼倒下。
They breathed a harmful mix of dust, smoke and chemicals in the ruins of the twin towers and a third building that fell.
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