the arcturians were not benevolent
...The Arcturians were not benevolent; they came to earth with their technology and infused into her field large amounts of sulfur dioxide that apparently was a waste from their own star system.? 大角星人并不友好，他们带着他们的技术来到地球，向她的领域注入了大量的显然是他们星球系统产生的废料——二氧化硫。
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the arcturians were not benevolent
大角星人并不仁慈
以上为机器翻译结果，长、整句建议使用 人工翻译 。