Soon the mouse chewed a big hole in the net, and the lion was free.

不久，老鼠把网咬出了一个大洞，狮子就自由了。

Without the spring emergence of the hungry caterpillars to chew holes in a dense canopy, there wouldn't be enough light flooding the forest floor.

如果没有这些在春季出现的毛毛虫把浓密的树冠啃出一个洞来，就不会有足够的光线照到森林地表。