Soon, about half the houseflies had Salmonella in and on their bodies.
不久,差不多一半苍蝇携带了沙门氏菌。
2
And we don't have the same reflexive awareness of houseflies - or moths - for example.
我们对家蝇、飞蛾就不会有这样的反射性意识。
3
Houseflies had evoluted high resistance to DDVP in Yizheng and Yangzhong. In Yizheng, houseflies had evoluted highest resistance to deltamethrin, while in Yangzhong the resistance is low.