请问以下这几个英文字母分别代表足球场上的什么位置:RB.LB.RM.RCM.LCM.LM.RS.LS.

玩实况,cm就都知道了
守门员gk(goalkeeper)
清道夫sw(实况是cwp(cweeper))
左边后卫lwb(left wing back)
左后卫lb(left back)
左中后卫lcb(left center back)
中后卫cb(center back)
右边后卫rwb(right wing back)
右后卫rb(right back)
右中后卫rcb(right center back)
攻击型后卫ab(attack back)
后腰cdm(center defence midfield,也可分为左后腰和右后腰lcdm和rcdm)
左边中场lwm(left wing midfield)
左中场lm(left midfield)
左中中场lcm(left center midfield)
中中场cm(center midfield)
右边中场lwm(right wing midfield)
右中场lm(right midfield)
右中中场lcm(rght center midfield)
攻击型中场即前腰cam(center attack midfield)(实况好象是omf(offence midfielder)),可分为左前腰和右前腰(lcam和rcam)
左前锋lf(left forward)
中前锋cf(center forward)
右前锋rf(right forward)
左中锋ls(left striker)
中锋st(striker)
右中锋rs(right striker)
实况中中锋是cf,前锋是ss