An astronaut's body goes through unusual changes

来源：百度知道 编辑：UC知道 时间：2024/09/21 04:35:56
while he or she is in space and still other changes once back on earth.There is no gravity in space,so the astronaut's heart doesn't have to pump hard to blood to the legs and feet.If the heart doesn't work hard,it will shrink somewhat.
An astronaut's other muscles are also affected by space travel.One astronaut,just after landing back on earth,tried to lift a light camera and had a lot of questions.The astronaut's muscles had not become weaker.His brain was just telling his muscles how hard to work to lift the camera.His brain thought he was still weightless in space and sent the wrong message to muscles.怎么译？

而他或她是在太空中还有一些变化再次回到地球.没有重力的空间，所以航天员的心没有泵很难血液循环的腿.如果心脏不努力，它会缩小一些。
一名宇航员的其他肌肉也受空间影响.一个宇航员着陆后刚刚回到地球上，试图解除轻相机和有很多问题.宇航员的肌肉尚未变弱.他的大脑只是告诉他如何肌肉努力工作，以解除压力.他的大脑以为他仍然在太空中失重，并对肌肉发出了错误的信息。