每日口說挑戰 什麼是地震？| 地震是什麼？ (What Is An Earthquake? | The Dr. Binocs Show | Learn Series For Kids)

今日挑戰句子

Yes, it's not a single piece of land but approximately 20 pieces of a puzzle that constantly move,

沒錯，地球的表面並不是一整塊陸地，而是由 20 塊不斷在移動的拼圖陸塊所組成的。