讲解文本：
push one's luck 得寸进尺，贪心，冒越来越大的风险 It's already very good, don’t push your luck! 已经很不错了，别太贪心了！ You better stop, you are pushing your luck. 最好赶快停止，你这是在得寸进尺啊！
疯狂练习吧！
