1．古人讲究炼字，所以诗句中有一些关键词语，使全诗增色。请找出下列诗句中的关键词语并体会其妙处。
(1)雨去花光湿，风归叶影疏。(王勃《郊兴》)
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(2)绿情红意两逢迎，扶春来远林。(洪瑹《阮郎归》)
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(3)泊处空余鸟，离亭已散人。(阴铿《江津送刘光录不及》)
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