on the wagon
戒酒，弃恶从善
口语·描述戒酒或戒瘾
英文释义
to stop drinking alcohol or engaging in a particular addiction
例句
He's been on the wagon for six months after his health scare.
典故来源
源自20世纪初美国戒酒运动，wagon指运水车，戒酒者发誓只喝水不喝酒，比喻戒除恶习。