1.
I should like to say how grateful I am.
谨表示我深切的谢意。
2.
express my deep obligation to sb.
向某人表达深切的谢意
3.
I should like to say how grateful I am for your kindness.
对您的好意我谨表示我深切的谢意。
4.
We have expressed the depth of our gratitude to them.
我们向他们表示了深切的谢意。
5.
I shall like to say how grateful I am for his information .
我谨对为我提供消息表示我深切的谢意。
6.
I should like to say how grateful I am for his information.
我谨对他为我提供消息表示我深切的谢意。
7.
Words are not enough to express the depth of my gratitude for the gift which you so kindly sent me on the occasion of my graduation.
言语难以尽表我的深切谢意，谢谢你惠赠的毕业礼品。
8.
I give to you my thanks.
请接受我深深的谢意。
9.
It is a hopele( definite)( positive) understatement to say that I am deeply( sincerely)( truly) grateful.
这就是说“我深深的（挚的）真诚的）谢”远不足以（能确切）不能明确）达我的谢意。
10.
Many thanks for your kind thought of me in sending back my umbrella.
谢谢你把伞还给我的这一份关切之意。
11.
It is a hopeless understatement to say that I am deeply grateful.
只是一句“我深深地感谢”远不足以表达我的谢意。
12.
I should like to say how grateful I am (for his information).
我谨(对他提供的消息)表示深深的谢意。
13.
Please accept ( I wish to express )my sincere (grateful) (profound) appreciation for ...
请接受（致以）真挚的（衷心的）（深切的）感谢……
14.
We are most gratified that you have, for several years,included a selection of our products in your mail-order catalogues. The resulting sales have been very steady.
贵公司的邮购目录多年来收录本公司产品,产品销售成绩理想,特此致以深切谢意.
15.
They deeply appreciated his kindness.
他们对他的好意深表感谢。
16.
Accept my sincere thanks for your kind instruction, which has left a lasting impression on me.
对您的谆谆教导，我深表谢意，铭记不忘。
17.
I was most grieved to learn the death of your dear mother. Please accept my deepest condolences upon this sad event.
获悉令堂谢世，我深感悲伤，请接受我对丧事最深切的慰问。
18.
marked by keen caution and watchful prudence.
以深切的小心和留意的慎重为特点。