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四级强化四级强化1. increase (rise, grow, jump) to 上升到上升到- rise from 20% in 2000 to 45% in 2005 - rose from 20% to 45% over the same period rise by 25% 上升了上升了 from one to two thirds 从三分之一到三分之二从三分之一到三分之二 twice as many (much) as 二倍二倍2. decrease (drop; fall; decline) to (by) 下降（到；了）下降（到；了） fluctuate (rise and fall; ups and downs) 波动波动图表写作1. The chart unveils (reveals; shows) in the number of 2. increase to / byUseful Expressions Writing 2 Writing13 结束语结束语