We have three open canopies, which is a good thing.

三个顶蓬都打开了，这是件好事。

Thanks to the timing of the budworm opening the canopy this spring, there's going to be enough prey for these lynx to hunt next winter.

多谢那些蛾幼虫在这个春季打开了树冠，在下一个冬季，这里才会有足够的猎物供养猞猁。

Their two-year study found that even selective logging in protected forests opened up the canopy enough to dry out the undergrowth and make it catch fire more easily.

他们为期两年的研究发现，即使是在受保护的森林中有选择性的采伐，也足以打开树冠，使灌木丛变得干燥，更容易着火。