宇航员从月球带回了岩石标本。
Astronauts have brought back specimens of rock from the moon.
通过研究宇航员从月球上带回来的岩石标本，科学家们发现月球上稀少的水资源与地球水资源的化学成分并不相符。
Researchers studying rocks brought back by astronauts have found that the moon's scarce water has a different chemical signature than Earth water.
江明喜研究员则终于如愿找到一丛蛇足石杉。每人的塑料袋中，装着心仪的标本。
Researcher Jiang Mingxi finally found the cluster of Huperizia serrata he was looking for. Every one had their plastic bags filled with their favorite specimens.
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