this line graph illustrates the fluctuatuion of....rate or this line graph shows/indicate/discuss....
In general,the figures reveal that 是什么内容，总体趋势要交代(如果有的话)
主体： 少于三根分别描述 the figure f123....the figure f123...
多于三根归类描述。。。。。On the contrary.....
From these figures,we can see that......(开头描述趋势，结尾不写;开头没，结尾就要写)
remain at;jump sharply from;reach the peak of;take up;fluctuate around;increase suddenly to;fall rapidly between 时间;come sreep decrease;bottom out to百分比;increase sharply;fall to 百分比;exceed;there is a steady decline to百分比;remain stable at;drop to百分比;drop gradually to百分比;rise slightly to 百分比;significantly exceed
圆形图：this is a pie that shows the proportion of
一个图 。。。is classified into.....
结尾：It can be concluded from the pie chart that...
多个图：The pie charts show the world divided into....and the amount of......a12....
主体： 1。从最多和最少分(分布情况)2。从两个图分(消费情况)
结尾：the table clearly demonstrates that.....are evenly distributed across the continent/From the information above,we can see that...are not even around the world
表格：the table shows...(注意说明横纵座标)
according to the table
specifically....in conclusion....
have a great rise;jump to;reverse from a great increase to sudden drop;drop slightly;sharply fall;have a dramatic increase;increase steadily;have a great jump;fall suddenly
结构图/流程图： the diagram/graph reveals/indicates/shows structure of....分结构和功能描述