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"There's an old saying in the space world: amateurs talk about technology, professionals talk about insurance."
2015年12月六级真题（第二套）阅读 Section C
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Some "expert amateurs" in the satellite game could provide some inspiration for how to proceed responsibly.
2019年6月六级真题（第三套）阅读 Section B
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There's an old saying in the space world: amateurs talk about technology, professionals talk about insurance.
2015年12月六级真题（第二套）阅读 Section C