push your luck
US /pʊʃ jʊər lʌk/
UK /pʊʃ jʊər lʌk/

1.
得寸进尺, 冒险
to try to get more than what you have or are offered, with the risk of losing everything
:
•
You've already won a small prize; don't push your luck by playing again.
你已经赢了一个小奖品了;不要再玩了,以免得寸进尺。
•
I think I'll stop now, I don't want to push my luck.
我想我现在就停下来,我不想得寸进尺。