每日口說挑戰 【科學知識】天啊！原來我的身體這麼酷！(Why Your Body Is AMAZING!)

今日挑戰句子

The cells that lie in your stomach regenerate every 5 days, which makes sense as stomach acid can dissolve metal.

像是在胃裡面的細胞平均每五天就再生一次，怪不得胃酸可以溶解金屬。