1.he was a good man, decent and sincere; felt sincere regret that they were leaving; sincere friendship.
他是个好人大方又诚恳；他们离开让人由衷的遗憾；诚挚的友谊。
2.For any delay which unavoidably occurred during the last few weeks, by reason of the removal and alterations, I express my sincere regret.
由于我公司迁址以及变更登记，在前周内，我司发货延迟，实属难免。对此深感抱歉，请予谅解。
3.Please accept my sincere regret at not being able to join the dinner party.
由于不能参加晚宴，请接受我诚挚的歉意。
4.Both President Bush and Secretary of State Powell have expressed their sincere regret over your missing pilot and aircraft.
布什总统和鲍威尔国务卿都已就你们失踪的飞行员和飞机表达了真诚的遗憾。
5.e. g. The letter was expressive of his sincere regret.
这封信表达了他真诚的歉意。