Bar Chart两种模板方法：
数据相对较少时：
排序法：
Topic Sentence
The largest number can be found in A, number.
The second largest figure can be seen in B, number.
This is followed by C and D, while the smallest figure can be found in E, number.
Conclusion
数据相对较多时：
极值法：
The bar chart gives information about .... for A, B, C
The largest number can be found in A, number.
The second number can be found in B, at....
The smallest number can be found in C, number.
Conclusion
柱状图常用极值法，或者当做线状图来叙说
极值法简述：
The bar chart is about ... for A, B, C, D and G （including A, B, C, D)
确定用极值时，先说所有，以免后面没有想到
The largest number can be found in A, number
The second largest number can be found in B, at ...
The smallest number can be found in C, number
Conclusion
Practice:
锁定North American 先说
South American 后说
如果用极值，先说所有交通工具，以免后面没有提及
同时也可以把柱状当做线图来描述
Notes:
最重要的是能够说完，不一定多说
用at 来替代 which is around
