The manner in which the decision was announced was extremely regrettable.
宣布决定的方式非常令人遗憾。
The loss of jobs is highly regrettable.
失去工作非常令人遗憾。
It is regrettable that the police were not informed sooner.
遗憾的是没有早些报警。
It is regrettable that strike leaders seem intent on spoiling holidays.
遗憾的.是罢工领导人似乎决意要破坏节日的气氛。
A person who does a regrettable action is often regretful afterwards.
行为不检点的人，日后往往懊悔。