2013年雅思考试写作范文69
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This is a flow chart that describes how the trees in the yellow stone park in the USA will be replanted.
After the light and fire had destroyed the trees, most of the trees became soil and dead wood gradually. Then some saplings were planted in the area which was destroyed by the light and fire. In the next 50 years, the young trees will grow slowly.
Over the next 100 years, the trees will reproduce, the area of trees will expand extensively. By the next 150 to 300 years, the tree will become taller and thicker.
After the next 300 years, most of the trees will fully grow. A new forest will replace the old forest which was destroyed by the light and fire 300 years ago.
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