请别人帮忙（如发文件等）
At your convenience, would you please send me…..（在邮件的最后请加上Thank you for your assistance.）
寻求意见
Our team would appreciate your insights/input on…..
Due to the short time frame for this proposal, prompt reply is greatly appreciated.
取消会议
I want to be mindful of your time and we don’t have any updates at this point; therefore I suggest that we cancel/reschedule today’s meeting. If you disagree or need assistance, please let us know.
My apologies for the late notice, but i need to reschedule tomorrow’s call. There remain a few open items we need to address, therefore i will send out a new invite once we agree upon a time.
对方发邮件询问问题，回答完之后加上
Hope this answers your question. Let me know if further detail/explanation would be helpful.
道歉
My sincere apology for this unfortunate situation; I will address to my team immediately.
Again，please accept my most sincere apology.
邮件问好
Hope you’re well/Hope you are doing well. I hope this message finds you well.