每日口說挑戰 【TED-Ed】黏液黏膜很重要! 來看看他們如何影響我們的健康 (How mucus keeps us healthy - Katharina Ribbeck)

今日挑戰句子

Sure, it might seem gross, but can you think of any other substance that can lubricate, keep your body clean, fight infection, and domesticate a teeming bacterial population? Nope, just mucus.

也許它看來很噁心，但你還能想到另一種能幫你保持濕潤、保持體內清潔、對抗感染、以及管控微生物數量的嗎？僅有黏液，別無分號。