The chart gives us an overall picture of the………/
如果两个图，则：There are two charts . The first chart describes the number of ……….., and the other chart illustrates the figure of……. 第二句：（所有题目适用），From the ---- we can see that the ------ of ………varies constantly /greatly in……….
Para2. (detailed analysis & reason)
It is clear from the chart that …....rank the first/highest, whereas ....turn out to be the lowest. It is exhibited in the table that.....
A， which accounts for...%,ranks the first; then next is B with...%; followed by C, B， constituting...%; finally it comes D.E.F at...%...% and...% respectively. C， It is worth mentioning that
Para3. conclusion
Judging from these figures, we can draw the conclusion that……………..
unequally 不相等地 pronounced 明显的
而:while, however ,whereas, the summit,
预见:prediction 达到顶峰: mount to
扩展句：1、As early as _____.
2、Then _____ years later, ____. 3、And arriving in the year ____, Several factors contribute to
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