The mother language is the line on the top of this diagram.
在这个图解中，母语处于最上方的那列。
2
Does every apply to the bar graph, broken line graph, pie diagram?
是否每个都适用于条形图，折线图，饼图？
3
We also accompanied each item in the diagram — use case, business object, user, or whatever — with a line or two of text describing that item's purpose.