And the answer is, perhaps, that you use these guys, Bacillus pasteurii, a micro-organism that is readily available in wetlands and marshes, and does precisely that.
答案就是，或许，你可以用这些家伙， 巴氏芽孢杆菌， 一种能从湿地和沼泽中 轻松获取的微生物。