剑桥词典abbreviation for Clostridium difficile: a type of bacterium (= an extremely small organism ) that can cause serious illness and that is very difficult to treat 艰难梭菌（一种细菌，极小的生物，能导致难以治愈的重病，Clostridium difficile的缩写） The elderly are at increased risk from C. diff. 老人更容易感染艰难梭菌。 返回 C. difficile