每日口說挑戰 便便有機會拯救地球！你所不知道便便的好處 | BBC創意 (The extraordinary power of poo! | BBC Ideas)

今日挑戰句子

Untreated excrement was used as manure in kitchen gardens, while urine was used to produce fabric.

未經處理的排洩物會被用來作為菜園裡的肥料，而尿液則被用來紡織布料。