感谢信 appreciation， thank
道歉信 apology， apologize， sorry
申请信 apply，application
求助信 ask sb。 to do， ask for help
咨询信 inquire, ask for information
邀请信 invite, invitation
辞职信 resign, resignation
建议信 suggest, advice, suggestion
投诉信 complain, complaint
书信格式：
Dear XXX
第一段
第二段
第三段
Yours sincerely，
John
书信格式 - 称谓
认识对方：
Dear Tom,
Dear Mr. Smith,
Dear Mrs. Smith
Dear Ms. Smith,
Dear Professor Thompson,
Dear Mr. Professor,
Dear Mr. President,
不是说你跟对方熟不熟悉，而是说，你知不知道你要跟谁讲话。
不认识对方：
Dear Sir,
Dear madam,
dear sir or madam,
dear mr. manager,
dear mrs. president,
dear fellow student,
dear friend (s),
结尾
yours sincerely,
yours faithfully,
best regards,
yours sincerely, is typically employed in english when the recipient is addressed by name (e.g. Dear john), and is known to the sender to some degree, wheres yours faithfully is used when the recipient is not addressed by name, (i.e. dear sir/madam) or when the recipient is not known personally by the sender.
kind regards, and especially best regards, is meant as a way of addressing close friends or loved ones or a close working relationship. a common error is to say best regards or kind regards in formal letters which perhaps shows a misunderstanding of the term.
扩展资料：
书信详细内容：
第一段： 自我介绍，寒暄，写信目的
i am .... a .... of ......
it has been several weeks since we last met. how are you doing?
感谢信：i am writing to extend my most sincere appreciation for .....
道歉信：i am writing to offer my most sincere apology for ...
求助信：i am writing to seek your most generous help with ....
邀请信：i am writing to invite you to .....
咨询信：i am writing to inquire about ...
求职信：i am writing to apply for ... you advertised
辞职信：i am writing to formally request to resign from my current post of ....
欢迎信：i am writing to welcome you to ...
投诉信：i am writing to express my deepest dissatisfaction about...
推荐信：i am writing to strongly recommend ... to you
建议信：i am writing to make/offer some suggestions about ...
第二段：详细的起因经过结果
第三段：结尾
thanks for everything you have done
sorry for any inconvenience caused
it would be highly appreciated if you could....
please feel free to contact me if you have any further questions. i can be reached at phone..... i am looking forward to hearing from you soon.
