Explanation: Dark, smooth regions that cover the Moon's familiar face are called by Latin names for oceans and seas.

说明：在月球表面上较黑暗、平滑的区域，是以拉丁文的海洋来命名。

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Explanation: Dark, smooth regions that cover the Moon's familiar face are called by Latin names for oceans and seas.

说明：在月球表面上较黑暗、平滑的区域，是以拉丁文的海洋来命名。

youdao