1go up and down/ wave/ fluctuate/ beunstable/ be in flexible起伏不定
2 The first point tonote is the huge increase in the number of
需要注意的第一点就是…的急剧增长
3 The statistics show that这些数据表明
4Form/comprise/make up/constitute/ account for….percent占百分之几
5 This cure graph describes the trendof该曲线图描述了…的趋势
6 The statistics lead us to theconclusion that由这些数据，我们可以做出如下结论
7 As can be seen from the line graph, 由线状图我们可以看出
8增加：Increase / raise / rise / go up/ soar/ascend/ mount/ climb
9减少：Decrease / grow down / drop / fall/ reduce/descend/ shrink to/decline
10稳定：Remain stable / stabilize / level off/ remainunchanged