You can tell the truth, Corporal.

你在她的裙子里可找不到， 下士。

youdao

Some people are so terribly insincere you can never tell if they are telling the truth.

有些人虚伪得可怕，你绝对无法搞清楚他们是否在讲真话。

《柯林斯英汉双解大词典》

Why tell the truth when you can come up with a good excuse?

既然你能找到好的借口，那为什么要说出真相呢？

youdao

I can't tell you the truth.

我没法告诉你实情。

I can't 实战 - SpeakingMax英语口语达人

I'm not a lawyer, but I don't think that the law requiring you to tell the truth, the whole truth and nothing but the truth means you can tell the truth that's convenient or the truth only about certain things.

CNN: Transcript: House debates articles of impeachment

But first I think all these cameras are going to move out, so you can tell me the truth. (Laughter.) All right?

WHITEHOUSE: Talking Jobs with America��s Mayors

It is the only industry you can't tell the truth in.

BBC: Ferguson decides not to appeal against five-game ban