/aɪˈdiː.ə/
名词
意见,想法,主意;计划
I've had an idea - why don't we go to the coast?
我有个主意——我们为什么不去海滨呢?
信念;见解
目的;理由
The idea of the game is to get rid of all your cards as soon as you can.
游戏的目的是尽快出完手中的牌。
想跟读,去练习