perspicacity

他的洞察力使他能够迅速看穿对方的谎言。

His ___perspicacity enabled him to quickly see through the other person's lies.

这位艺术评论家的敏锐洞察力在检查笔触后几秒钟内就揭示出这幅画是一件精巧的赝品。

The art critic's ___perspicacity revealed the painting to be a clever forgery within moments of examining the brushwork.

这位经验丰富的外交官的洞察力察觉到了语气中的微妙变化，这预示着谈判即将破裂。

The seasoned diplomat's ___perspicacity detected the subtle shift in tone that signaled the negotiations were about to collapse.