例句與造句

1. This is one of the most common harmful effects that parasites have on their hosts . for example , roundworms and pork tapeworms live in the intestines and rob the body of nutritious substances in the intestines , thus causing malnutrition . 2 mechanical action : parasites can endanger the host through obstruction , compression and direct damage
   1奪取營養(yǎng)：寄生蟲攝食宿主的營養(yǎng)物質(zhì)，供其發(fā)育繁殖和生存，這是寄生蟲對宿主造成最常見的危害之一，如蛔蟲和豬肉絳蟲寄生在小腸內(nèi)，奪取腸道內(nèi)的營養(yǎng)物質(zhì)，可引起營養(yǎng)不良。
2. It's difficult to find nutritious substance in a sentence. 用nutritious substance造句挺難的