5种常见的商务英文邀请函-条据书信 1) 请对方来发表一个speech，这封信是要感谢对方，同时确认对方对技术设备的具体要求。 dear sir/madam, im delighted you have accepted our invitation to speak at the conference in city on date. as we agreed, youll be speaking on the topic from time to time. there will be some time for questions. would you please tell me what kind of audio-visual equipment youll need? if you could let me know your specific requirements by date, ill have plenty of time to make sure that the hotel
