sincerely

In all honesty/frankness/sincerity,ie speaking with the greatest honesty,etc

最诚实地/坦白地/真诚地

I gave him my sincere thanks.

我真诚地向他道谢。

behave cold and formally.

非常冷淡、不真诚地行事。

Believe me, I am truly grateful for...

我确实真诚地感谢你……

Sincerest congratulations on your birthday.

真诚地祝你生日快乐。

He sincerely converted to Judaism

他真诚地改信了犹太教。

I sincerely hope that this first transaction

我真诚地希望这次交易

Your very sincere well-wisher A. Lincoln

真诚地祝福你的A.林肯。

He loved his wife devotedly.

他真诚地爱他的妻子。

I promised you faithfully.

我真诚地向你承诺。

I earnestly hope that you will succeed.

我真诚地希望你成功。

We cordially wish it a success.

我们真诚地希望它成功。

The government has acted in good faith.

政府一直在真诚地施政。

But indeed I would love you fondly and truly.

但是真的，我会亲切地，真诚地爱你。

I had a sincere desire to help her, so I told her with simplicity and sincerity.

我真诚地想帮助她，所以坦率、诚恳地告诉了她。

They liked each other honestly-they were both honest.

他们俩真诚地彼此受慕着--他们都是诚实的人。

I sincerely hope you will soon recover.

我真诚地盼望你不久就会恢复健康。

I sincerely hope we transaction can be concluded.

我真诚地希望能做成一笔买卖。