见书上有用your sincerely 和yours sincerely 还有sincerely yours 这几个都正确吗?有什么区别?

见书上有用your sincerely 和yours sincerely 还有sincerely yours 这几个都正确吗?有什么区别? your sincerely Your sincerely什么意思 your sincerely是非正式用法? your sincerely什么意思啊 sincerely yours是否等于yours sincerely your faithful是否就是your faithfully?your faithful是否错误？your faithfully正确我在一本口语书上看到了your faithful，是否是错误的？ sincerely yours是否等于yours sincerely your faithful是否就是your faithfully? 书信最后结尾your sincerely和sincerely yours是不是都可以? I sincerely hope your English can be improved什么意思? i sincerely look forward to your coming.4065 this thing will make you can't download.Your sincerely. You should put ( ) before you sign your name in the letterA.Your sincerely B.Yours sincerely正确是哪一个 Yours sincerely sincerely是什么意思 sincerely是什么意思? sincerely ad. your sincerely 英语信这样写?称呼 能不能用dear friend? 英语翻译Thanking you most sincerely for your time and consideration to read my mail