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

1.
得寸進尺, 冒險
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.
你已經贏了一個小獎品了;不要再玩了,以免得寸進尺。
•
I think I'll stop now, I don't want to push my luck.
我想我現在就停下來,我不想得寸進尺。