Definition: used to say that it is unfortunate or embarrassing that something is true Level: C1
很遗憾，那把小提琴再也没有被找到。
___Sad ___to ___say, the violin was never found.
是的，说来惭愧，那部电影我已经看了十五遍了。
Yes, ___sad ___to ___say, I've seen that movie fifteen times.
遗憾的是，你的报告中有很多观点我们无法认同。
___Sad ___to ___say, there are many points in your report we do not agree with.
