太空探索 meaning in English

space exploration
space seeker

Billions of dollars have been spent on space exploration
数十亿美元花费在太空探索上。
It ' s difficult to quantify the value of space exploration
把太空探索的价值进行量化是很困难的。
Spend money exploring outer space , or for basic needs on earth
把钱由于外太空探索还是满足人们的基本需求？
" new frontiers of space exploration
太空探索新纪元
The history of space exploration
太空探索的历史

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