这项任务实际上涉及两次月球撞击。

The mission actually involved two moon shots.

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但是如此强烈的撞击应当汽化掉月球所继承的所有水分。

But such a violent collision should have vapourised any water inherent to the moon.

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在月球上，登月探险者们冒着被撞击的极大危险。

On the moon, the lunar explorers ran a considerable risk of being hit.

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在月球上，登月探险者们冒着被撞击的极大危险。

On the moon, the lunar explorers ran a considerable risk of being hit.

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