On the left is M97 in the constellation Ursa Major, also known in the northern hemisphere as the Owl Nebula.
左边是M 97在大熊座，又称北半球的夜枭星云。
There was a major flu outbreak, and a Tamiflu-resistant strain of seasonal flu established itself and then spread to the Northern Hemisphere, including to the United States, last winter.
当时出现了严重的流感爆发，抗达菲药物的季节性流感乘机而入，疫情一直扩散到了北半球的冬天，包括美国在内的广大地区。
Population growth, pollution and invasive species are having a disastrous effect on species in the southern hemisphere, a major review by conservationists warns
自然资源保护者的重要回顾报告提出警告说，人口增长、环境污染以及外来物种正对南半球的物种产生灾难性影响。
Formerly a constellation in the southern hemisphere lying between Canis major and the southern cross now divided into four smaller constellations carina puppis pyxis and Vela.
南船(星座)从前的一个南半球星座，位于大犬座与南十字座之间，现分四个较小星座，船底座，船尾座，罗盘座及船帆座。
Formerly a constellation in the southern hemisphere lying between Canis major and the southern cross now divided into four smaller constellations carina puppis pyxis and Vela.
南船(星座)从前的一个南半球星座，位于大犬座与南十字座之间，现分四个较小星座，船底座，船尾座，罗盘座及船帆座。
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