非常遗憾，我们奉告您关于，等。
l. We regret to inform you that (of)
2. We are sorry to have to draw your attention to
3. We regret to have to say that
4. We regret to advise you that
5. We very much regret to announce you that
6. It is most regrettable that we have to inform you that (of)
7. It is with our greatest regret that we must inform you that (of)
8. To our greatest regret we must herewith inform you that (of)
9. It is a matter for regret that I have to inform you that (of)
10. It is to be regretted that I must inform you that (of)
11. It is with regret and reluctance that we have to inform you that (of)
12. It gives us a deep sorrow that we have to announce you that
13. It causes me much sorrow to have to say that
14. I feel sorry for having to announce you that
15. I express my sorrow for announcing you that
当我们得悉……甚为遗憾等。
1. We are very sorry to hear (know) that
2. we are grieved to hear of (about)
3. We are indeed sorry to hear that
4’ We very much regret to hear that
5. We regret to hear of (that)
6. It is with great regret that we just learn that
7. Much to our regret we have heard that
8. We regret to receive your information re
9. We regret that we have been informed that (of)
10. To our deep regret we were informed that (of)
我们对于您某月某日来函的询价，深表谢意等。
1. We thank you very much for your inquiry of the l0th of May
2. I thank you for your inquiry of the 10th May
3. We are very much obliged by your enquiry dated the 10th May
4. We are indebted to your inquiry under date (of) the 10th May for
5. I thank you for your inquiry of July 10
6. Thanks for your kind enquiry of May 5
责任编辑：虫虫
