科学家仔细察看行星照片,寻找生命迹象。
Scientists are studying photographs of the planet for signs of life.
在先前被认为没有任何生命迹象的海洋深处发现了海洋生物。
Marine life was discovered at depths previously thought to be azoic.
干燥的石墙看上去荒凉而且没有生命迹象,但是它们却为动植物提供了宝贵的栖居地。
Dry stone walls may appear stark and lifeless, but they provide a valuable habitat for plants and animals.
In 2001:A Space Odyssey, we get some kind of indication that there's life on another planet.
太空漫游,一些迹象表明,另一个星球上有生命存在
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