n.针锋相对;
例句:
Tit for tat is fair play.
人不犯我,我不犯人;人若犯我,我必犯人.
And sometimes, going to negotiations is also tit-for-tat.
有时候去谈,也是针锋相对.
They had a warm debate and the two gave each other tit for tat.
他们激烈地辩论,二人针锋相对.