win (something) hands down idiom (also beat someone hands down)
轻松取得（对…的）胜利，轻松击败（某人）
to win something/beat someone very easily
She won the debate hands down. 她轻松获得了这场辩论的胜利。
The last time we played tennis he beat me hands down. 我们上一次打网球时他轻松将我击败。