Ceratosaurus was perfectly designed for hunting in the densely forested areas that surrounded the river systems.

角鼻龙的设计非常适合在水系周围的浓密森林里狩猎。

If that sounds like a lot, get this: the Oort Cloud, surrounding the solar system, may have trillions of icy bodies in it.

如果这听起来很多，那么听听这个：围绕太阳系的奥尔特云中可能有数万亿的冰体。