美国、日本男孩出生率为何下降？

Male births declining in the US and Japan

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我遇到了一个名叫佐藤的日本男孩，当我伸出我的手时，他鞠躬。

I met a Japanese boy called Sato, and as soon as I held out my hand, he bowed.

youdao

上海篇：蕴蕴是个高中生，来中留学的日本男孩修平租住在她的楼上。

Chapter Shanghai:Yunyun is a student of high school and Japanese boy Kepen lives in the second floor of her house.

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