Sincerely yours, KEN R. DYKE, Sales Promotion Manager.

你诚挚的肯·R。戴克，营销部经理。

Thank you for taking the time to read my letter. Sincerely yours, Frank.

感谢您花时间读我的信。此致敬礼，弗兰克。

That's the idea behind the phrase or the expression " Sincerely yours." " I am being sincere."

这就是“Sincerely yours” 这个短语或表达背后的想法。 “我是真诚的。

So, you might say, " Cheers, " and then " Jeff." In American English, you're probably going to find phrases such as " Sincerely yours, " or " Cordially, " (cordially) for very formal emails.

所以，你可能会说， “Cheers” ，然后是“Jeff” 。 在美式英语中，对于非常正式的电子邮件， 你可能会发现诸如“Sincerely yours” 或“Cordially” （亲切地）之类的短语。