1REAL/NOT FALSE OR ARTIFICIALif you feel or believe something sincerely, you really feel or believe it and are not just pretending 由衷地,真诚地,真心实意地SYN truly
I sincerely hope I’ll see her again.
我衷心希望再见到她。
We are sincerely grateful for your help.
我们由衷地感谢你的帮助。
2.(yours) sincerelyTCMan expression used to end a formalletter, especially one that you have begun by using someone’s name 谨上,敬上,谨启〔用于以某人名字开头的正式信件的末尾〕
Yours sincerelyBritish EnglishBrE Sincerely yoursAmerican EnglishAmE an expression used to end a formalletter. You use this expression when you have addressed the person you are writing to by name, rather than DearSir or Dear Madam → comparefaithfully