The larvae may be excreted in the faeces.幼虫会连同粪便排出.The faeces contain nitrogen and it is that which fertilises the desert soil.粪便含氮，而正是氮可以肥化荒芜的土地。They stand on their own accumulated faeces, which quickly become disease -...
Normans from South Italy and Spain, nobles and knights, answered the advertisement.来自意大利南部和西班牙的诺曼人, 包括贵族和骑士, 都纷纷响应这个号召.Soon the nobles became poor and the rich became paupers.瞬息间,贵族变贫民,富翁成乞丐,荷兰陷入一片萧条.Men of the sword had...