perceive是感知的意思，而realize则是意识到的意思，区别可以从以下例子看出：
I don\'t perceived that he is coming, but I realize he leave his house, and on the way to here, let\'s prepare everything for him. 我没有察觉到他会来，但我意识到他离开了他的房子，在来这里的路上，让我们为他准备好一切。
水利万物而不争,
而万物莫能与之争。
