第2859期:Is your showerhead as clean as you think? - 英语每日一听

This is a city like no other. An invisible army of microbes live here, including bacteria, fungi, moulds and mites, and it's the one place you'd have hoped would be clean – your showerhead.这是一座与众不同的“城市”。这里住着一支看不见的微生物大军，包括细菌、真菌、霉菌和螨虫，而这地方正是你最希望保持干净的地方——你的淋浴喷头。 If you unscrew it and take a peek inside, you might be surprised as to what you find – quite possibly a slimy dark biofilm. When you switch on the shower, it's not just steam and water that come out, but a blast of microbes as well.如果你把喷头旋开往里看，你可能会被里面的东西吓一跳——很可能是一层黏糊糊的暗色生物膜。当你打开淋浴时，不只是蒸汽和水喷出来，还有一阵微生物被一起喷出。<p style="color:#3333...