fs是当然可以的意思。
fs是forsure的缩写，意思是当然可以。
eg1：However,youarenotfishforsure.
eg2：Onethingisforsure,it'snotgoingtobeeasy.
eg3：Ithinkhe'llbebackonMonday,butIcan'tsayforsure.
eg4：Eventothisdaywedon'tknowwhathappenedforsure.
eg5：Nooneknowsforsurewhyadolescenceisuniquetohumans.
常用英文缩写
RIP=restinpeace安息
BBQ=barbecue烤肉
PIN=PersonalIdentitynumber个人识别码
ATM=automatictellermachine自动存提款机
A.K.A=alsoknownas以...之名
GG=goodgame一场好游戏
FYI=foryourinformation供你参考的意思（通常FYI会用大写）
FAQ=frequentlyaskedquestions常见问题
Q&A=QuestionandAnswers提问与回答
