【整个时段最高】...were the highest throughout the period./ over the period/during this 25-year period
【起点】In 1940 the proportion of XX stood at ...XX in XX, approximately XX in XX and XX in XX 【最高点后回落】After peaking at ...,XX had fallen back o XX by 2002
【最后两年增长放缓】though the growth slowed over the last two years
【由X剧烈增长到X】There was a dramatic increase in XX from(number) to (number)
【明显缩小】the gap between the three categories narrowed considerably
【相等】was equal at
【尽管有波动】Despite some initial fluctuation,
【尽管有波动】In spite of some fluctuation in the ...
【预计】is expected to/ is predicted to
【分别始于】From XX and XX respectively in 1980
【分别是】..while the impact of this on Oceania and North America was minimal, with only 1.7% and 0.2% of land affected respectively.
【保持稳定】will remain stable at
【相对不重要】relatively insignificant
【经历下降】saw a fall
【时间段末尾】by the end of the period
【时间点对应数字】..but rose dramatically in 2011 when it represented 23% of the school budget
【相应的下降】corresponding drops
【不那么明显的下降到】...also declined, but much less significantly to just below...
【表现出下降趋势】showed an upward trend
【急剧下降】plummet/ plunge
【由xx组成】be made up of /consist of/ be composed of
【维持在某一水平】remain stable at 、level off at/ hover at (高)
【最高点】peak at、reach its peak at /reach the highest level at
【最低点】fall to its lowest point at
【份额】account for / represent/ make up .......of
【持续的】consistent和continuous 表示下降不管中间gradual和steady表示稳步【大幅的】sharp、rapid、dramatically写准。