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)