1.come up with ideas 想出点子
But seeing Peter and Max and the guys come up with ideas and seeing how to make things work gave me a lot of insight.
然而当我看到彼得、麦克斯和那帮家伙想出一个点子，然后看着这个点子实现的时候，我领悟到了很多东西。

2.hit on the idea 突然想到一个主意
In response he hit on the idea of scrapping a prized facet of his country's welfare system.
在回应这一指责时他突然想到了一个主意，那就是取消意大利福利制度中珍贵的一部分。