***教授: 不好意思打扰您，我是中国**大学物能源和环境研究中心的一名研究人员,主要从事生物质能源方面的

【专家解说】：Professor XXX XXX I am a researcher engaged in the research of biomass energy. I have read your research papers and research results. I am very interested in the contents of your study. The key of this letter is writen to you to invite you joining a international cooperation projects. For details, please refer to XXX. If you are interested it, I would like have a further contact and discussion with you. Sorry to bother you and I am looking forward to your reply. Sincerely. XXX XXX The Energy and Environmental Research Center, XX University of China