1、A person who does a regrettable action is often regretful afterwards
行為不檢點的人， 日后往往懊悔。

2、He has committed a regrettable mistake.
他犯了一個令人遺憾的錯誤。

3、People rarely change; it is the unfortunate regrettable truth.
人很少變化，只是不幸的遺憾真理。

4、His tiredness caused him to make a regrettable error.
他由于疲勞而犯了個令人遺憾的錯誤。

5、We feel it very regrettable that you find our price on the high side.
對于你方認為我方價格偏高，我感到非常的遺憾。

6、The army said it had started an investigation into what it described as a regrettable incident.
軍方說已經(jīng)開始調(diào)查這起據(jù)稱的不幸事件。

7、Through a regrettable oversight I failed to send you an invitation
十分抱歉，由于我的疏忽，我沒有給你發(fā)邀請信

8、This is indeed a regrettable thing.
這確實是件非常令人遺憾的事情。

9、His tiredness caused him to make a regrettable error
他由于疲勞而犯了個令人遺憾的錯誤。

10、It is regrettable that the authorities should allow this to happen.
當局竟容許此事發(fā)生實在令人遺憾。

11、He is lucky enough never to have read a regrettable book.
他很幸運，沒有讀過一本令人遺憾的書。

12、It would be even more regrettable if they were to return to picking winners.
如果轉(zhuǎn)身去挑選優(yōu)勝者的話，那將會更加令人遺憾。

13、He made a regrettable mistake some time ago and still feels regretful now.
不久之前他犯了一個令人遺憾的錯誤，現(xiàn)在他心里仍然感到懊悔。

14、It is regrettable that the police were not informed sooner.
遺憾的是沒有早些報警。

15、This is indeed quite a regrettable thing.
這真是一件發(fā)令人遺憾的事情。

16、Through a regrettable oversight I failed to send you an invitation.
十分抱歉，由于我的疏忽，我沒有給你發(fā)邀請信

regrettable翻譯