extravehicular activity

名词 n.
中文释义

英文释义

名词 n.
  1. Any activity done by an astronaut outside of a spacecraft etc. countable,uncountable
    — “His venture into the vacuum of space began the history of extra-vehicular activity that makes today’s Space Station maintenance possible,” NASA said on Twitter.

词形变化

extravehicular activities plural EVA abbreviation
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