常用词汇

　　上升：increase, rise, ascend, surge, go up, climb

　　下降: decrease, fall, drop, descend, decline, reduce, lessen

　　平稳:stable, steady, remain the same as

　　波动:fluctuate, fluctuation

　　占:occupy, take up, account for

　　而:while, however, whereas, on the other hand, actually/in fact

　　相比:by contrast, on the contrary, compared with

　　最高点:the highest, the top, the summit, the peak

　　最低点:bottom, less, rock bottom

　　趋势:tendency, trend, inclination

　　预见:prediction, predict

　　达到顶峰: reach the top

　　由…组成：consist of/be made up of /be composed of

　　表示数据变化的单词或者词组

　　rapid/rapidly　迅速的，飞快的，险峻的

　　dramatic/dramatically　戏剧性的，生动的

　　sharp/sharply　锐利的，明显的，急剧的

　　steep/steeply　急剧升降的

　　steady/steadily　稳固的，坚定不移的

　　gradual/gradually　渐进的，逐渐的

　　slow/slowly　缓慢的，不活跃的

　　stable/stably　稳定的