Something About Allegro Package Symbol Creating

What’s creating PCB footprint references of CLASS/SUBCLASS.

SN(serial number)	CLASS	SUBCLASS	Component Key Information	Remarks
1	ETCH	TOP	PAD/PIN,Shape(The thermal pad of SMD IC)	necessary,conductivity
2	ETCH	BUTTOM	PAD/PIN(hole or blind via)	up to condition,conductivity
3	Package Geometry	Pin Number	映射原理图元件的引脚号，如果焊盘无标号，表示原理图不关心这个引脚或机械孔	necessary
4	Ref Des	Silkscreen_Top	component serial number	necessary
5	Component Value	Silkscreen_Top	component type or value	necessray
6	Package Geometry	Silkscreen_Top	元件的外形和说明，如线条，弧，字，Shape等	necessary
7	Package Geometry	Place_Bound_top	元件占地区和高度	necessary
8	Route Keepout	Top	禁止布线区	视情况
9	Via Keepout	Top	禁止过孔区	视情况

怎么把英语搞定？需要高中时期计划安排…