死和生都属于生命。举足落足都是在走路。
The walk is in the raising of the foot as in the laying of it down.
死亡与诞生一样，都属于生命。走路在于举足，同样也在于落足。
Death belongs to life as birth does. The walk is in the raising of the foot as in the laying of it down.
新的研究落足于一个更为根本的问题：45亿年前，月球形成时其内部含有多少水分？
The new studies tackle a more fundamental question: How much water did the moon contain inside when it formed, 4.5 billion years ago?
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