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We're looking at Earth science, observing our planet. Also space science, looking at the ozone in the atmosphere around our Earth. Also looking at life science. And on a human level, using ourselves as test subjects.
我们在研究地球科学，观察我们的星球。还有空间科学，研究地球周围大气中的臭氧。还有生命科学。在人类层面上，把我们自己作为测试对象。