无菌病房外的走廊安静而明亮。吴德沛站在隔离门外，拿起电话拨通了病房内的分机：“血象在往上走，指标比上周好，只要再稳定一点，就可以考虑骨髓移植了，我们一步一步来。”患者轻轻点头，窗外的阳光透过玻璃落在洁白的床单上。
Long-duration missions in space take a toll on the body, astronauts lose bone density and suffer muscle loss. Blood circulation is also affected, and fluid shifts can also impact eyesight.
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