每日口說挑戰 【能源】養寵物不稀奇，看這些居民如何「養冰河」來抵禦外敵、度過缺水危機！(How to grow a glacier - M Jackson)

今日挑戰句子

But before we get to that fascinating phenomenon, it's important to understand the difference between glaciers that grow in the wild, and those that humans create.

但在我們聊聊這個很炫的現象之前，很重要的一點是要了解自然生成的冰河與人造的冰河有何不同。