31.there is not a great deal of difference between...and...
...与...的区别不大。
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。
