直到20世纪40年代，人们才开始对这种古老的歌舞又有了兴趣，就这样方块舞再次风行。
In the 1940s, people became interested in the songs and dances the pioneers enjoyed. Square dancing became popular again.
科学家们希望冰方块能帮助解开困扰了他们超过一个世纪的宇宙射线谜题。
With IceCube, scientists hope to solve the cosmic-ray puzzle that has plagued them for over a century.
说明：20世纪写的俄罗斯方块代码，可以组装方块的形状。
Written by 20th century Russian box code, you can box the shape of the assembly.
但这一概念最初并非来自日本，而是源自拉丁方块，它是十八世纪的瑞士数学家欧拉发明的。
But this concept did not come from Japan, it came from Latin square. Euler who is Helvetic mathematician in 18 AD invented it.
但这一概念最初并非来自日本，而是源自拉丁方块，它是十八世纪的瑞士数学家欧拉发明的。
But this concept did not come from Japan, it came from Latin square. Euler who is Helvetic mathematician in 18 AD invented it.
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