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Virgin Galactic will start its space flights next year, using environment-friendly space launch technology.
维珍银河将开始太空飞行,明年使用环境友好型太空发射技术。
youdao
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Virgin Galactic will start its space flights next year, using environment-friendly space launch technology.
维珍银河将开始太空飞行,明年使用环境友好型太空发射技术。
youdao