Twenty miners were trapped underground after the gas explosion.

瓦斯爆炸后有二十名矿工被困井下。

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At the time of the explosion, 436 people were working underground.

当爆炸发生时，有436名矿工在井下工作。

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At the time of the explosion, 436 people were working underground.

当爆炸发生时，有436名矿工在井下工作。

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