ten tonnes of its droppings rain down on the city. 都有十吨粪便雨降临这座城市
with the droppings of tens of thousands of nesting penguins. 它们的粪便使山顶看起来一片粉红
sifting through the droppings for nutrients. 它们从粪便中过滤营养物质
The droppings also support other types of cockroaches 粪便也能养活其它种类的蟑螂
In the absence of plants this food chain is based on a continuous supply of bat droppings. 在缺少植物的情况下 这里的食物链 完全依赖供应不断的蝙蝠粪便
This hundred metre high mound is made entirely of bat droppings - 这堆100多米高的东西 全都是蝙蝠的排泄物