1. In place of the great trees which had been growing there for centuries, patches of green had begun to appear in the blackened soil.
    一片片的绿草开始出现在这片烧焦的土地上，代替了多少世纪以来一直生长在那里的参天大树。

2. In these forests there are so many trees, and they grow so close together, that it is hard to move around.
    森林里树木繁茂，不易走动。

3. It has sponsored the growing of cash crops such as cassava, maize, cotton, and the planting of trees to regenerate waste land.
    为恢复荒地的地力，它资助人们种植诸如木薯、玉米、棉花之类的经济作物和植树造林。

4. Freezing winter is harmful to orange trees.
    冰冻天气对桔子树是有害的。