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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她实验室里面一个装有钋元素的密闭舱发生泄漏，因为这次偶然事故，她患上了白血病并于十年后（也就是1956年）死亡。

A sealed capsule of polonium exploded in her laboratory and her death from leukaemia a decade later, in 1956, was attributed to the accident.

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