他致力于天文学的研究。

He is engaged in astronomical research.

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尽管如此，天文学家们仍然相信，当一颗彗星接近太阳时——这是他们可以研究它的地方——太阳的高温将会移除损坏的表层，露出内部。

Nevertheless, astronomers still believed that when a comet approached the Sun—where they could study it—the Sun's intense heat would remove the corrupted surface layer, exposing the interior.

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经过多年的仔细研究，天文学家发现了一颗与地球相似的行星。

After many years of scrutinizing, astronomers have found a planet that is similar to the Earth.

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