Dear Sirs， I thank you for your kind invitation on the occasion of your opening celebrations to be held on the 1st of
Dear Sirs， Our new－factory will be commencing production on January 1 and we should like to invite you and your wife
各构成要素在信中的排列如下:letterhead 信头reference number 案号date 发信日期inside address 封内名称及地址particular address 特定收信人名称住址salutaion
Dear Sirs， My wife and I were very grateful to receive an invitation to attend the celebrations marking the opening o