1 起伏不定go up and down/ wave/ fluctuate/ be unstable/ be in flexible

2 The first point to note 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

4 占百分之几Form/comprise/make up/constitute/ account for ….percent

5 This cure graph describes the trend of
该曲线图描述了…的趋势

6 The statistics lead us to the conclusion 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/ remain unchanged

11 It can be seen from the table that
由表格我们可以看出

12 The table shows the changes in the number of… over the period from…to…
该表格展示了从…到…数据的变化

13 The table provides some data of
该表格提供了有关…的数据

14 As can be seen clearly from the table,
从表格中我们可以清楚地看出，

15 As can be seen from the table, great changes have taken place in...
从表格中可以看出，...发生了巨大变化

16 This table illustrates the changing proportion of A and B from...to...
该表格描述了...年到...年间a与b的比例关系

17 急剧地 sharply, steeply, dramatically, drastically, suddenly

18 显著地,considerably, significantly, noticeably, remarkably, rapidly

19 稳步地, 逐渐地 steadily, moderately, gradually, smoothly

20 轻微地, 缓慢地 slightly, slowly, mildly, moderately

21 The following diagram shows the structure of......
以下的图展示了...的结构

22 The picture illustrates......
该图展示了...

23 It mainly consists of following steps.
它主要包括以下步骤

24 The whole procedure can be divided into...stages.
整个的过程可以分为...步

25 The first step is to
第一步是...

26 The next step is to
接下来的一步是...

27 The last step is to
最后的一步是...

28 The first stage involves
第一步包括...

29 In the next stage
接着，

30 In the last stage
最后，

31 The bar chart illustrates that…
该柱状图展示了

32 As is shown in the bar chart,
如柱状图所示，

33 It can be concluded from the bar chart that…
从该柱状图我们可以推导出

34 The bar chart presents the general trend in…
该柱状图描述了……总的趋势

35 This bar chart displays the numbers of…
该柱状图展示了…的数据

36 The number of … increased by %
…的数字上升了百分之…

37 The number of… dropped by %
…的数字下降了百分之…

38 The chart reflects several trends.
该图展示了几个趋势

39 As can be seen clearly from the bar chart, the fluctuation of…took place
从该柱状图我们可以清楚地看出：…出现了波动

40 Over the period from…to…the…remained level.
在……至……期间，…基本不变