NASA has spent years getting ready for a crowd in space - adding additional sleeping quarters, learning how to recycle liquid waste into drinking water, and installing a second bathroom last year.
美国宇航局已经花了几年的时间为空间的一群人做好准备——添加额外的睡觉住处,学习如何回收液体废物成为饮用水,以及在最后一年安装第二个浴室。
NASA has spent years getting ready for a crowd in space - adding additional sleeping quarters, learning how to recycle liquid waste into drinking water, and installing a second bathroom last year.
美国宇航局已经花了几年的时间为空间的一群人做好准备——添加额外的睡觉住处,学习如何回收液体废物成为饮用水,以及在最后一年安装第二个浴室。
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