Ever since a period in the late 1950s and early 1960s – when the Soviet Union launched the first artificial satellite, the first dog, the first man and the first woman into orbit – the US has been the pre-eminent space power.
自從20世紀(jì)50年代末至60年代初那段時(shí)期(當(dāng)時(shí)蘇聯(lián)發(fā)射了第一顆人造衛(wèi)星,首次男人、女人和狗送入太空軌道)以來(lái),美國(guó)人一直是獨(dú)步天下的太空霸主。
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