If the ox falls, whet your knife.
牛一倒, 快磨刀; 人遭难, 众人踩。
Harry: I can't move my left hand very well. Lost its grip or something… Ronnie(gripping Harry's hand in a shake): Strong as an ox. You're a sham, Harry boy.
哈里：我的左手不太动得了, 抓不住东西或其它什么的……龙尼（一把抓住哈里的手, 摇了摇）：像牛似的有力气, 你这个孩子, 想骗我吗。
He goaded the ox on.
他用刺棒驱牛。
