他好像想到了什么好主意。

He seems to have had a good ___idea.

他提出了周末去露营的主意。

He suggested the ___idea of going camping this weekend.

她对新政策的想法与大多数人不同。

Her ___ideas about the new policy differ from most people's.

她对未来的计划有了新的想法。

She has a new ___idea about her future plans.

这次活动的初衷是促进文化交流。

The main ___idea of this event is to promote cultural exchange.