The canopy layer is the upper parts of most of the trees.

大多数树木的上部是树冠层。

Once we know our trees, we divide them in four different layers: shrub layer, sub-tree layer, tree layer and canopy layer.

一旦我们知道是什么树种，我们就把它们分成四种：灌木层、草本层、乔木层和树冠层。

Toucans are found in South and Central America in the canopy layer of the rainforest.

巨嘴鸟在雨林的天篷层的南方和中美洲被发现.