英语长难句，中英翻译～
Very little light filters through the canopy of leaves and branches in a rain forest to reach ground level-or close to the ground-and at those levels the yellow-to-green wavelengths predominate.
雨林中很少有光能穿透由枝叶构成的树冠从而达到地面区，甚至接近地面区。这些地面区域中黄绿波长的光占据主导地位。
