But there are compelling reasons in favor of another Moon landing too, not the least of which is trying to pinpoint the moon's age.

但也存在令人信服的理由支持再度登月，其中包括试图确定月球的年龄。

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But, there are compelling reasons in favor of another moon landing too, not the least of which is trying to pinpoint the moon's age.

但是，仍存在强有力的理由支持再次登月，其中重要的一点就是为了明确月球的年龄。

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Such a smooth complexion implies that the surface is very young - probably less than 10 million years old, a tiny fraction of the moon's 4-billion-year age.

如此平滑说明它们的表面非常年轻——可能不到1000万年，和卫星40亿年的年龄相比，只是一个微小的分子。

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