A planet lighter than a ball of cork is one of the puffiest alien planets known to date.

根据数据已知，比一个软木塞球还轻的行星是最膨胀的外行星之一。

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A planet lighter than a ball of cork is one of the puffiest alien planets known to date.

根据数据已知，比一个软木塞球还轻的行星是最膨胀的外行星之一。

youdao