32.the graphs show a threefold increase in the number of......
该图表表明......的数目增长了三倍。
33.......decreased year by year while......increased steadily.
......逐年减少，而......逐步上升。
34.the situation reached a peak(a high point at) of[%].
......的情况（局势）到达顶（高）点，为......百分点。
35.the figures/situation bottomed out in......
数字（情况）在......达到底部。
36.the figures reached the bottom/a low point/hit a trough.
数字（情况）达到底部（低谷）。
37.a is ......times as much/many as b.
a是b的......倍。
38.a increased by......
a增长了......
39.a increased to......
a增长到......
40.high/low/great/small/ percentage.
比低高（低）
41.there is an upward trend in the number of......
......数字呈上升趋势。
42.a considerable increase/decrease occurred from......to......
......到......发生急剧上升。
43.from......to......the rate of decrease slow down.
从......到......，下降速率减慢。
44.from this year on，there was a gradual declinel reduction in the......,reaching a figure of......
从这年起，......逐渐下降至......
45.be similar to......
与......相似
46.be the same as......
与......相同
47.there are a lot similarities/differences between......and......
......与......之间有许多相似（不同）之处
48.a has something in common with b
a于b有共同之处。
49.the difference between a and b lies in......
a与b之间的差别在于......
50......(year)witnessed/saw a sharp rise in......
......年......急剧上升。

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