开头句
A.【bar graph/column graph直方图】【pie chart/饼状图】【line graph/曲线图】
【solid line/实线】【break line/虚线】【dot line/点状线】
【show/indicate/outline/illustrate】thegeneral pattern of …
B.【number/rate/percentage/figure】of …【rise/fall/increase/decrease/shoot up/decline】
【dramatically/sharply/steadily/slightly/drastically/gradually】from in to in
1. 描述曲线： 【reach its peak/top/bottom/valley】【audiy.com】【remain the same】
【level off/taper off】【fluctuate wildly/mildly】
2. 数据升降：lose it attraction/become a general favorite
