name: str | None = None
While the data shows 80% of people live within walking distance of green or blue spaces such as a river, park or woodland, it also reveals a disparity between rural and poorer urban areas.
，详情可参考WPS官方版本下载
所以，费曼曾称其为“物理学中最该死的巨大谜团之一，一个人类无法理解的魔术数字”。
Что думаешь? Оцени!