2005年的一天,天文学家宣布发现厄里斯星,一个比冥王星稍大一些的天体,并把它称为第十大行星。
On this date in 2005, astronomers announced the discovery of Eris, a heavenly body slightly larger than Pluto, and called it the 10th planet.
2005年的一天,天文学家宣布发现厄里斯星,一个比冥王星稍大一些的天体,并把它称为第十大行星。
On this date in 2005, astronomers announced the discovery of Eris, a heavenly body slightly larger than Pluto, and called it the 10th planet.
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