给定一段英文文本，将其中的所有名词和动词提取出来，并按照出现次数从高到低排列。


Text: 今天是美好的一天，太阳高高挂起，鸟儿欢快地飞舞着。我独自在公园里漫步，心情格外愉悦。
Nouns: day, sun, birds, park \
Verbs: is, hangs, fly, walk \
(Note: “I” is not included as a verb as it is a pronoun.)