Dear Mr. Smith，
I am really sorry to tell you that I cannot attend the training course next Tuesday， because ny manager has appointed me to go on a 3-day business trip to Hainan. Will you please record the lecture for me to review later?
Thank you for your consideration.
Yours faithfully，
Li Ming
亲爱的史米斯先生，
我很抱歉的告诉你，我不能参加下星期二的训练课程，因为纽约经理派我去上一个为期3天的海南之行。请您帮我录下这课的复习好吗?
谢谢你的考虑。
你的忠实的，
李明
因篇幅问题不能全部显示，请点此查看更多更全内容