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他在执行第一次太空行走的任务时，又是碰到空气泄漏，又是碰到材料意外硬化——后者把他压回了密封舱，几乎让他丧命。
He performed the first space walk on his mission, but experienced both air leaks and material unexpected stiffening — the latter of which made cramming himself back in the capsule a very near thing.
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