n.主意；想法；印象；意见；看法；观念；感觉；目标

It's my idea to hold the party outside the house. 在户外聚会是我的主意。

It would be a good idea to go swimming in the pond. 到池塘里去游泳倒是个好主意。

I have no idea what I plan to be when I grow up. 我不知道长大以后要干什么。

I don't want anyone getting the wrong idea. 我不希望任何人有所误会。

He has some very strange ideas about education. 他对教育有些非常奇怪的看法。

He has some pretty strange political ideas. 他有一些很奇怪的政治信念。

idea的基本意思是“想法,主意”,用作可数名词。idea也可用于学术方面,指“思想”“概念”。idea还可作“知道,了解”解。用于后两项意思时,既可用作不可数名词,也可用作可数名词。

idea后常接介词“of+名词、代词、动名词或疑问词从句”作定语,也可直接接that从句作定语。