性格欢快的英语怎么说

"性格欢快"可以用英语表达为"cheerful personality"或"sunny disposition"。
"Cheerful"是一个形容词，意思是"愉快的，高兴的"。它来自中古英语"cearful"，意思是"快乐的，安宁的"。
"Sunny"是一个形容词，意思是"阳光明媚的，快乐的"。它来自中古英语"sunne"，意思是"太阳"。
下面是一些例句：
She has a cheerful personality and always puts a smile on everyone's face. (她有一个性格欢快，总是让每个人都露出笑容。)
He has a sunny disposition and never lets anything get him down. (他有一种性格欢快，从不让任何事使他沮丧。)
She always greets people with a cheerful hello. (她总是以愉快的问候来迎接人们。)
His sunny personality makes him a joy to be around. (他性格欢快，让人感到高兴。)