英语四级作文万能模板图表式作文It is obvious in the graph/table that the rate/number/amount of Y has undergone dramatic changes. It has gone up/grown/fallen/dropped considerably in recent years (as X varies). At the point of (接近)X1, Y reaches its peak value of (多少).What is the reason for this change? Mainly there are (多少) reasons behind the situation reflected in the graphic/table. First of all, (第一个原因). More importantly, (第二个原因). Most important of all, (第三个原因).From the above discussions, we