其目的是拧螺丝、起钉子、拧螺钉、刨冰的问题。
The aim of it is the problem of screw twisting, nail pulling and screw twisting and ice plane.
试想一个人，作为上帝的最伟大创造，却要一辈子站在机器旁拧螺丝。
Think of a man, the grandest of God's creations, spending his life-time standing beside a machine for making screws.
拉线、系绳、取物、拧螺丝甚至转身等在地面轻而易举的动作，在失重的太空显得缓慢而迟钝。
The back guy, the mooring rope, take the thing, to twist the screw even to turn around and so on the ground easy movement, appears in weightlessness outer space is slow and is slow.
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