For aeons people lived to the age of just 25 or 30 and most parents could expect to mourn at least one of their children.
古代人类只能活到25 -30岁，绝大多数父母都会失去至少一个孩子。
For aeons people lived to the age of just 25 or 30 and most parents could expect to mourn at least one of their children.
古代人类只能活到25 -30岁，绝大多数父母都会失去至少一个孩子。
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