ISF
abbr. 信息系统加工线(Information System Finishing)
例句
This water isf for drink.
这种水可以喝。
I'm wondering isf he would be promoted.
我怀疑他是否能得到升职。
The ISF is the world governing body of softball.
国际垒球联合会是垒球的世界性管理机构。