Probably some bird droppings that's rolling around somewhere.
大概是用从哪里掉下来的什么鸟做的吧。
These droppings fall to the ground when he flies through the sky.
这些粪便倒在地上时，他飞在天上。
In some sense that duck droppings is a kind of resource instead of pollution.
从某种意义上来说，鸭粪不是一种污染物，而是一种资源。
On the road there is little to protect them from mud, insects, and bird droppings.
在路上，几乎没有东西去保护他们免遭泥土、虫和鸟粪的侵袭。
On the road there is little to protect them from mud, insects, and bird droppings.
在路上，几乎没有东西去保护他们免遭泥土、虫和鸟粪的侵袭。
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