每日口說挑戰【發音特輯】你的發音標不標準呢？一起來 review！

Since the nineteen sixties, our population percentages have always looked like a pyramid.

Since the 1960s, our population percentages have always looked like a pyramid

Since the nineteen sixties, our population percentages have always looked like a pyramid.
自 1960 年代以來，人口分布圖型總是金字塔形