#英语口语对话短文：地球为什么是圆的 搜索结果
Ournever-thoughttoaskquestionfortodayis:Whyistheearthround?Whynotacube?Acube?No,that'ssilly.Isit?Why?Because…,becausereallybigthingsliketoberoundforsomereason.Exactlyright.Andthatreasonisgravity.Th
