大作文图表作文模板第一段(一升一降一不变,一缓慢)What a thought-provoking and illuminating chart it is! As is apparently depicted in the chart, it is obvious that(内容)soared from(数据)in(年份) to(数据) in(年份), While, as a sharp contrast, (内容)decreased from(数据)in(年份) to(数据) in(年份).In addition ,(内容)was almost the same in(年份)and(年份)./(there was only a slow increase from(数据)in(年份) to(数据) in(年份)第二段(解释具体原因)Why does this phenomenon revealed in the chart above appear? Several reasons accounting for the situation can be w