它与太阳的距离与地球相比，大约是1：2 .5，因此，水星受到太阳照射的强度大约是地球的7倍。
It is about two and a half times nearer to the sun than our earth, therefore it receives nearly seven times as much light.
它与太阳的距离与地球相比，大约是1：2 .5，因此，水星受到太阳照射的强度大约是地球的7倍。
It is about two and a half times nearer to the sun than our earth, therefore it receives nearly seven times as much light.
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