to tell the truth

基本解释

To tell the truth, I envy him.
说实话，我倒是很羡慕他。
And you know that even in the best marriages and romantic relationships, we sometimes fail to tell the truth.
而你也清楚，即便是最美好的婚姻，最浪漫的两性关系，我们有时候也无法说实话。
If anything, they have only made me increasingly gloomy. To tell the truth, they have made me more and more contemptuous of other people.
倘要我寻出这些事的影响来说，便只是增长了我的坏脾气，——老实说，便是教我一天比一天的看不起人。
edu.sina.com.cn

"The criminal justice system relies on the testimony of persons and their ability to tell the truth.
Well, Wright himself described that difficulty of writing his autobiography, and these are the terms he used: I found that to tell the truth is the hardest thing on earth, harder than fighting in a war, harder than taking part in a revolution.
莱特自己描述了,自传写作的艰辛，他如是说：,“我发现说真话是世界上最难的事，比参加战争难，比参加革命难，如果尝试写自传。
耶鲁公开课 - 1945年后的美国小说课程节选
And then after that, it was about a two-year wait, to tell you the truth.
在那之后，老实说，大概还要等上个两年。
想当军人的理由 - SpeakingMax英语口语达人

And we sent a message to the FBI - you got to tell the truth.
NPR: Judge Remembers Time on Top Secret Bench