She feared to tell him the truth.

她不敢把真相告诉他。

《牛津词典》

To tell the truth, I'm a bit unsettled tonight.

说实话，今晚我有点心神不安。

《柯林斯英汉双解大词典》

To tell the truth, I don't think much of psychiatrists.

说实话，我认为精神病医生不怎么样。

《柯林斯英汉双解大词典》

The problem is that "lie" also means to not tell the truth, as in "I lied to my mother."

VOA: special.2010.02.11

Right? I expect him to tell me the truth about the weather, right, and that's what I'm listening to him for.

对吧？，我希望他告诉我们天气的实况，我听他说话就是这个目的。

耶鲁公开课 - 文学理论导论课程节选

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

All that I was ever told to was to tell the truth to the best of my ability.

NPR: Before Congress, Clemens Insists He Is Innocent

And we've got to be able to tell the truth to the American people that that is hard to solve.

WHITEHOUSE: President Obama Takes Questions from Senate Democrats

They will have to tell the truth to our creditors that the U.S government has borrowed beyond the ability of its citizens to repay.

FORBES: Why The U.S. Needs To Stop Dodging The Debt Bullet