We turned the Earth into a sandwich, by having one person hold a piece of bread at one point on the Earth, and on the exact opposite point of the Earth, have another person holding a piece of bread.
我们把地球变成了一个三明治， 方法是让一个人举着一片面包 站在地球的某一处， 然后在地球对面相对的地点， 安排另一个人也举着片面包。