牧羊人的烦恼

The sheep farmers'trouble

肠道寄生虫总是困扰着澳大利亚和新西兰的牧羊人,如今,或许有新的方法可以帮助解决这一问题。

1 Sheep farmers in Australia and New Zealand have a problem.Their animals are affected by worms(寄生虫)which cause them to become extremely thin and can,in severe cases,kill them.