快乐的用英文怎么说副词

"Happily" is the adverb form of "happy" in Engpsh. It is derived from the Old Engpsh word "hap," which means "good luck" or "fortune."

Here are some examples of "happily" in a sentence:

"She played happily in the park all afternoon." (她整个下午都在公园里快乐地玩而不顾一切。)
"He greeted his friends happily when they arrived at his party." (当他的朋友来参加他的聚会时，他很高兴地迎接了他们。)
"The couple pved happily ever after." (这对夫妻从此过着幸福快乐的生活。)