If this is the case, they will shower their attention on the grandchildren whose parents are most likely to reciprocate in the future.

如果这个情况属实，他们会把大量的关爱倾注到孙辈人身上，孙辈人的父母在将来更可能给予回报。

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What it does do is make the case that Earth was hit by an asteroid shower around 65 million years ago, rather than a single space rock.

造成这场全球灾难的真正原因是，大约6,500万年前，一群小行星——而不是一颗孤立的天体——密集地撞击了地球。

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