17增长至：Grow to，rise to，increase to，go up to，climb to，ascend to，jump to，shoot to

18降低至：Dip to，fall to，decline to，decrease to，drop to，go down to，reduce to，slump to，descend to，sink to，slide to

19 保持稳定：Level out，do not change，remain stable，remain still，remain steady，be stable，maintain the same level，remain unchanged，be still，remain the same level，stay constant，keep at the same level，level off，stabilize，keep its stability，even out

20急剧的：Dramatically，drastically，sharply，hugely，enormously，steeply，substantially，considerably，significantly，markedly，surprisingly，strikingly，radically，remarkably，vastly，noticeably

21平稳地：Steadily，smoothly，slightly，slowly，marginally，gradually，moderately，mildly

22宣称：Allege, assert, declare, claim

23发生：Happen, occur, take place

24原因：Reason, factor, cause

25发展：Development, advance, progress

26有益的：Useful, helpful, beneficial, profitable, rewarding，advantageous

27影响：Influence, impact, effect

28明显的：Clear, obvious, evident, self-evident, manifest, apparent, crystal-clear

29占：Comprise, take up, account for, constitute, consist of, make up, occupy, hold, compose

30与…相比：Compared with，compared to，in comparison with，in comparison to，by comparison with，by comparison to

31对比而言：By contrast，in contrast，on the other hand，on the contrary=，conversely

32展示：Show, reveal, illustrate, demonstrate, depict, present, represent, describe

33大约：Approximately，almost，about，around，nearly，roughly

34波动：Fluctuate，go ups and downs，display a fluctuation，demonstrate a fluctuation

35事实上：Practically，in practice，essentially，in essence，in reality，in effect，in fact，as a matter of fact，it is a fact that

36换言之：Namely，that is to say，in other words，to put it like this，to put it differently，to put it from another way，to put it from another angle

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