如果真有那么多，这颗星球的表面将会被几米深的乙烷所覆盖，但是“卡西尼号”却什么也没发现。

If there had been, the moon would have been covered with an ocean of the stuff several meters deep and Cassini saw nothing of the kind.

youdao

如果真有那么多，这颗星球的表面将会被几米深的乙烷所覆盖，但是“卡西尼号”却什么也没发现。

If there had been, the moon would have been covered with an ocean of the stuff several meters deep and Cassini saw nothing of the kind.

youdao