1.as can be seen from the graph, the two curves show the fluctuation of... 如图所示，两条曲线描述了...的波动情况。
2.over the period from...to...the...remained level. 在...至...期间，...基本不变。
3.in the year between...and... 在...年到...期间...
4.in the 3 years spanning from 1995 through 1998... 1995年至1998三年里...
5.from then on/from this time onwards... 从那时起...
6.the number of...remained steady/stable from (month/year) to (month/year). ... 月(年)至...月(年)...的数量基本不变。
7.the number sharply went up to... 数字急剧上升至...
8.the percentage of...stayed the same between...and... ...至...期间...的比率维持不变。
9.the figures peaked at...in(month/year) ... 的数目在...月(年)达到顶点，为...
10.the percentage remained steady at... 比率维持在...
11.the percentage of...is sightly larger/smaller than that of... ... 的比例比...的比例略高(低)。
12.there is not a great deal of difference between...and... ... 与...的区别不大。
13.the graphs show a threefold increase in the number of... 该图表表明...的数目增长了三倍。
14....decreased year by year while...increased steadily. ... 逐年减少，而...逐步上升。
15.the situation reached a peak(a high point at) of[%]. ... 的情况(局势)到达顶(高)点，为...百分点。
16.the figures reached the bottom/a low point/hit a trough. 数字(情况)达到底部(低谷)。
17.a is ...times as much/many as b. a是b的...倍。
18.a increased by... a增长了...
19.a increased to... a增长到...
20.high/low/great/small/ percentage. 比低高(低)。
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