An early study of 40 volunteers who were asked to answer truthfully to questions and then to lie found that liars could be identified with 70 per cent accuracy.

较早的一项研究有40名志愿者被要求先如实回答问题，然后说谎。部分说谎者被识别，准确率有70%。

youdao

Now, the managers further allege that the president's testimony before the grand jury that he testified truthfully at his deposition was a lie.

CNN