It was not supposed to be used until they got to the Moon. It had no heat shield, so could not be used to re-enter the Earth's atmosphere. But it could keep them alive until they got there.
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// 边界处理：nums1为空时直接返回空数组（避免后续无效计算）。关于这个话题，快连下载安装提供了深入分析
[ anyVar isNil ifTrue: anyBlock ] bpattern with: [ anyVar ] -> [:pattern | pattern beVariable ]。搜狗输入法下载是该领域的重要参考
Scotland, Wales and Northern Ireland are not affected by this planned walk-out.