The word "stronaut" comes from greek word.What does it mean?

来源：百度知道 编辑：UC知道 时间：2024/05/26 00:31:43
用英文，谢谢！
ISS是什么？宇航员最远到过太空的什么地方？宇航员在太空立会变高还是变矮？

1 It means a man who travels in outerspace by spacecraft or shuttle.
2 ISS:International Space Station(国际空间站)
3 Moon.
4 According to the theory of relativity,the astonaut will become taller when he or she travels in outerspace.

it was astronaut