will not take no for an answer idiom
不容拒绝，不接受别人说“不”
to not allow someone to refuse what you have offered
I told Steve I'm not interested, but he keeps asking me out - he won't take no for an answer. 我已经告诉史蒂夫我没兴趣，可他还是不断请我出去——他就是不接受别人说“不”字。