youdao

Pachauri has refused to apologise for the claim, though the IPCC has issued a statement expressing regret for the mistake.

虽然IPCC已经发表声明为此错误表示遗憾，但是帕乔里拒绝为此断言道歉。

youdao

The second most common regret involved family issues, with 16 percent of respondents expressing regret about a family squabble or having been unkind to a sibling as a child.

被调查的人群中，有将近五分之一的人讲述了一段错失良机的爱情故事，其次的遗憾与家庭有关，16%的被调查者后悔与家人争吵，后悔孩提时，没有善待兄弟或姐妹。

youdao

It's great for expressing regret, both for yourself or for a friend,

你可以为你自己或是你的朋友表达后悔之意。

I should have 课堂 - SpeakingMax英语口语达人

On Monday, Mr Singh received a letter from President Hollande expressing regret for the incident, reports say.

BBC: French soldiers kill two Indian nationals in CAR

Wallace issued a video statement later in the day expressing regret.

NEWYORKER: Leap of Faith

An elaborate plan to patch up the quarrel collapsed when Mr Netanyahu's prideful coalition partners refused to let him go beyond expressing regret and offer a formal apology.

ECONOMIST: Lexington