这颗被称作Gliese 581g的星球大约是地球的三倍大，而且，不会动。 这就意味着，这颗星球的一半会是永远的白天，而另一半将是永恒的黑夜。
Roughly three times more massive than Earth, the planet Gliese 581g is tidally locked to its star, which means that one side is perpetually basked in daylight and the other is in constant darkness.
这颗被称作Gliese 581g的星球大约是地球的三倍大，而且，不会动。 这就意味着，这颗星球的一半会是永远的白天，而另一半将是永恒的黑夜。
Roughly three times more massive than Earth, the planet Gliese 581g is tidally locked to its star, which means that one side is perpetually basked in daylight and the other is in constant darkness.
应用推荐