变节

make a political recantation
turn one's coat

变分法, 便服, 变革, 变更, 变工, 变故, 便函, 变黑, 变红, 变厚, 便壶, 辩护, 变化, 变换, 变幻, 变换设备, 遍及, 变价, 便笺, 变焦距镜头, 辩解, 便览, 便利, 变脸, 变量, 变流器, 变乱, 辩论, 变卖, 便帽, 便门, 便难, 变暖, 便盆, 变频, 变迁, 便桥, 便人, 辨认, 变软,