但是，研究者们认为一种近似的技术可被用来寻找太阳系以外行星上生命的足迹。
But the researchers say a similar technique could be used to find signatures of life on planets orbiting other stars.
在一块发白的石头上，经风雨侵蚀，暴露出沧桑的痕迹。上面，铭刻着生命的足迹。
In a piece of white rocks, eroded by wind and rain, revealing traces of life. Above, engraved with the footprints of life.
我们的生命旨在去激励别人，让我们自己都留下值得追随的人生足迹吧。
Our life is designed to inspire. Let's make footprints worth following.
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