这得根据具体语境来表达,我有以下几种说法。
1) Your idea?
2) What do you think of it?
3) How about your idea?
4) Your opinion?
5) What's your idea?
1和4,比较口语化,也简洁。
如果你是想问别人还有没有别的想法,可以说what do you think?
如果是你已经给出一个方案,问别人对你方案的看法,可以这么说what do you say?
How about you
how do you say
how do you think of that?
What do you think of?