邀请: invite函: case; envelope征求: solicit; seek; ask for建议书邀请函: rfp request for proposal; rfrequest for proposal请求建议书: rfp=request for proposal; rfrequest for proposal徵求建议书: rfp建议书: b. proposal, plan and report writing; b. proposals; d. proposals and reports; memorial; offer letter; recommendations; rfp征求供应建议书: proposal solicitation邀请提交建议书: request for proposal-rfp征求建议: ask for advice; request for proposals承包建议书: bid proposal费用建议书: fee proposal工程建议书: technical proposal公关建议书: pr proposal; proposal管理建议书: management letter技术建议书: technical proposal计划建议书: planning proposals减刑建议书: advisory letter of commutation建议书的: itu-t商业建议书: commercial proposal施工建议书: construction recommendations司法建议书: judicial advise投标建议书: tender submission项目建议书: project proposal; proposals for the projects协议建议书: protocol recommendation