At the Post Office

Lisa: I need stamps to send eight post cards. How much are they? Clerk: Eight cents each. Anythi

第三十四课 在邮局 基本词汇： send 寄，送 parcel 包裹 Shanghai上海 by air

Network Working Group M. Rose Request for Comments: 1225 Performance Systems International Obsolet

Network Working Group J. Myers Request for Comments: 1939 Carnegie Mellon STD: 53 M. Rose Obsolete

Network Working Group J. Myers Request for Comments: 1725 Carnegie Mellon Obsoletes: 1460 M. Rose

Network Working Group M. Rose Request for Comments: 1460 Dover Beach Consulting, Inc. Obsoletes: 1

Network Working Group M. Butler Request for Comments: 937 J. Postel D. Chase J. Goldberger J. K

Network Working Group J. K. Reynolds Request for Comments: 918 ISI October 1984 POST Office PROT

Network Working Group M. Rose Request for Comments: 1081 TWG November 1988 Post Office Protocol

Network Working Group M. Rose Request for Comments: 1082 TWG November 1988 Post Office Protocol