Grammar Note
通常作定语
地球外的；外星的
先理解核心含义，再看它在真实句子里的用法。
地球外的；外星的
Originating from outside Earth's atmosphere, from space, or from another planet; alien to Earth.
Scientists study extraterrestrial rocks to learn about the solar system's formation.
科学家研究地球外的岩石，以了解太阳系的形成。
来自地球大气层外、太空或其他星球的；对地球或其环境而言是外来的。
Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.
起源于、位于或发生在地球或其大气层之外的
originating or located or occurring outside Earth or its atmosphere
The novel features a civilization that communicates with extraterrestrial beings.
这部小说描绘了一个与地球外生物交流的文明。
AI contextual example
Astronomers are searching for extraterrestrial life in distant galaxies.
天文学家正在遥远的星系中寻找地球外生命。
AI contextual example
is there extraterrestrial life?
存在外星生命吗?
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通常作定语
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Dictionary facts from ECDICT, WIKTIONARY.