【美式短信缩写】b/c—because;b4—before;b'day—birthday;b4n(or bfn)—bye for now(再见);bbl—be back later(稍后回来);brb—be right back(很快回来);brt—be right there(马上到);btw—by the way(顺便提一下);bcnu—be seeing you(回头见)(转)