念頭 和 主意 的差別在哪裡？如果不好說明，請提供一些例句。
念頭 is more like a thought flashed rapidly in your mind.
And compare to 念頭, 主意 required a little bit of time to think and be aware of .,念頭 = impulse
主意 = idea
And compare to 念頭, 主意 required a little bit of time to think and be aware of .,念頭 = impulse
主意 = idea
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