他在1904年就提出猜想：在四维空间，所有单连通的封闭三维面都能转化为一个三维球体。
His conjecture, made in 1904, was that in this four-dimensional world, all closed three-dimensional surfaces that are simply connected could be transformed to look like a three-dimensional sphere.
建筑的美是四维的，他能经得起时间的磨移。
他尤其需要一种将持续时间视为第四维的小说形式。
He specially needs a novel form that regards duration as the fourth dimension.
北京四维信通科技有限公司是一个年轻的公司，它由一个年轻的团队组成，总经理刘小龙也同样是一位朝气蓬勃的年轻人，他带领四维信通推陈出新，在创造之路上勇往直前。
Bejing SWXT Technology CO. , LTD is a young company with a young team. General manager Liu Xiaolong is also a vigorous youth, leading SWXT marching on its way of innovation.
北京四维信通科技有限公司是一个年轻的公司，它由一个年轻的团队组成，总经理刘小龙也同样是一位朝气蓬勃的年轻人，他带领四维信通推陈出新，在创造之路上勇往直前。
Bejing SWXT Technology CO. , LTD is a young company with a young team. General manager Liu Xiaolong is also a vigorous youth, leading SWXT marching on its way of innovation.
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