如果没有树木吸收地面中的水分，土壤一直会比周边的树林更加湿润。
Without a tree to soak up moisture from the ground, the soil remains wetter than in the surrounding forest.
在充足的光线下，树林边缘的树木呈现出一种暗棕色的绿色——因为已经到八月底了。
The trees on the wood-edge were a darkish, brownish green in the full light—for it was the end of August.
因为没有树木不成树林吗。
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