While Neil Armstrong's moonwalk first is probably more famous in the west, Gagarin's flight was arguably far more impressive.

虽然尼尔·阿姆斯特朗的月球漫步在西方可能更为出名，但加加林的飞行可以说更令人印象深刻。

Two subjects in particular he kept returning to. One was the air crash in 1968 that killed Gagarin, which he later officially investigated.

他尤其经常回忆两件事。其中之一是1968年导致加加林死亡的空难，他后来对此进行了正式调查。