We greatly appreciate your letter describing the assistance you received in solving your air-conditioning problems. We are now in our fifty year of operation, and we receive many letters like your indicating a high level of customer satisfaction with our installation. We are pleased that our technical staff assisted you so capably. We would like you to know that it you need to contact us at any time in the future. Our engineers will be equally responsive to your request for assistance. If we can be of service to you again, please let us know. Thank you again for your very kind letter. 承蒙来信赞扬本公司提供的空调维修工程服务，欣喜不已。五年前开业至今，屡获客户来函嘉奖，本公司荣幸之至。欣悉贵公司识技术人员的服务，他日若有任何需要，亦请与本公司联络，本公司定当提供优秀技师，竭诚效劳。在此谨再衷心感谢贵公司的赞赏，并请继续保持联络。

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