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