以牙还牙； 报复
He was comforted by the thought that he had given Mrs Green a Roland for her Oliver. 一想到已经用以牙还牙的方式对待了格林太太，他就感到宽慰。
I would pay him back for his treacheries. 对他的背信弃义我要报复。
He was waiting for an opportunity to retaliate. 他在伺机报复。
