•I've had an idea - why don't we go to the coast?我有个主意——我们为甚么不去海滨呢？

•"Let's go swimming." "That's a good idea!"“我们去游泳吧。”“好主意！”

•If you have any ideas for what I could buy Jack, let me know.我给杰克买甚么东西好，如果你有甚么主意请告诉我。

•That's when I first had the idea of starting (= planned to start) my own business.那是我首次有了自己创业的想法。

•I like the idea of living in the countryside but I'm not sure I'd like the reality.我觉得住在乡村的想法很好，但我不肯定是否喜欢这样一种现实。

•She's full of bright (= good) ideas.她满脑子好点子。

•[+ to infinitive] It was Kate's idea to hire bikes.租脚踏车是凯特的主意。

•Do you have any idea of what he looks like?你知道他长甚么样子吗？

•Can you give me an idea of the cost (= Can you tell me approximately how much the cost is) ?你能告诉我费用大概是多少吗？

•I don't like the idea of living so far away from my family.我不喜欢住在离家这么远的地方。

•[+ question word] I haven't the slightest/faintest idea wh ere they've gone.我根本不知道他们去了哪里。

•I've got a pretty good idea wh y they left early.我很清楚他们为甚么早早就离开了。

•"Where's Serge?" "I' ve no idea (= I do not know) ".“瑟奇在哪里？”“我不知道。”

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•We have very different ideas about disciplining children.我们对于如何管教孩子看法大不相同。

•[+ that] Leach puts forward the idea that it is impossible to spoil a child.利奇提出的观点是，宠坏孩子是不可能的。

•I'm not married - where did you get that idea (= what made you believe that) ?我没有结婚——你这个想法是从哪里来的？

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•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。

•The whole idea (= only purpose) of advertising is to make people buy things.广告的唯一目的就是让人买东西。

•The idea behind the national lottery is to raise money for good causes.发行全国性彩票的目的在于为慈善事业筹款。

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•Playing card games is not my idea of fun.我并不认为玩纸牌很有趣。

•Is this your idea of a joke (= Do you think that this is amusing) ?你觉得这好笑吗？

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•Don't go putting ideas into his head. We can't afford a new car.别让他有甚么奢望，我们买不起新车。

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•I can't turn up at a funeral in a pink jacket. What an idea!我不能穿粉红色的夹克去参加葬礼。多可笑的建议！

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•Flying a plane is wonderful, you have no idea.你不知道驾驶飞机有多棒。

•You have no idea how embarrassed I was.你不知道我当时有多尴尬。