with regret的用法和樣例：
例句
- We announce with regret the death of the mayor.
我們遺憾地宣布市長去世了。 - Much to my regret,I must leave you now.
我很遺憾地告訴你，我現在要離開了。 - I regret to inform you that it is impossible.
我很抱歉地告訴你，那是不可能的。 - He told me with regret that he could not come to the party.
他很抱歉地對我說他不能來參加這個聚會了。
