retreat, shrink back, back down
你无论如何，不要退缩
Whatever you do, don't back down.
— 老男孩 (2003)
他从未退缩过
He never backed down.
— 雨水危机 (2011)
这么容易退缩啊老兄
You’re giving up that easily, bro?
— 三傻大闹宝莱坞 (2009)