每日口說挑戰 【TED-Ed】牙齒是怎麼演化的？(How did teeth evolve? - Peter S. Ungar)

今日挑戰句子

You may take them for granted, but your teeth are a marvel. They break up all your food over the course of your life, while being strong enough to withstand breakage themselves.

或許你把牙齒視為理所當然，但它們是個奇蹟。在你一生中，它們弄碎你所有的食物，而且自身夠強大，能承受破損。