英语翻译1.This strange band was first made in the 1800s by a Ger

英语翻译
1.This strange band was first made in the 1800s by a German named August Mobius.
2.He wanted to find a way to prove how this band works with math.
3.If you draw a line along the surface of the paper before you twist andgule it,the line is only on one side of the paper.