啊，体育，你就是乐趣！
Is human fecundity declining in Western countries?
西方国家的人类生育力在下降吗？
High exposed radar radiation might cause the poor fecundity.
高暴露雷达辐射下可能是导致生育力下降的原因。
However, natural stage there is no "lucrative" and fecundity.
然而，舞台演出天生没有“一本万利”的繁殖力。
However, natural stage there is no "lucrative" and fecundity.
然而，舞台演出天生没有“一本万利”的繁殖力。
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