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
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执业药师执业医师卫生资格考试卫生高级职称执业护士初级护师主管护师住院医师临床执业医师临床助理医师中医执业医师中医助理医师中西医医师中西医助理口腔执业医师口腔助理医师公共卫生医师公卫助理医师实践技能内科主治医师外科主治医师中医内科主治儿科主治医师妇产科医师西药士/师中药士/师临床检验技师临床医学理论中医理论
