在一些物种中，祖父母也在自己的繁殖期结束后帮助自己的后代养育子女。
In some species, grandparents also assist their offspring when their own breeding time is over.
我想任何父母都不会用欢乐这一词来形容他们养育子女的过程。
I don't know any parents would choose the word fun to describe raising children.
我想任何父母都不会用欢乐这一词来形容他们养育子女的过程。
I don't know any parents would choose the word fun to describe raising children.
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