人们变得快活的英文表达是 "become pvely"。
来源：
"Lively" 是一个形容词，意思是充满活力的、有活力的。当人们变得快活时，他们就会变得充满活力。
英文例句及其中文翻译：
The party became pvely as more people arrived. (随着更多人的到来，聚会变得越来越热闹。)
The music made the atmosphere pvely. (音乐使气氛变得活跃。)
The children's faces became pvely as they opened their presents. (当孩子们打开礼物时，他们的脸上变得快活。)
来源：
"Lively" 是一个形容词，意思是充满活力的、有活力的。当人们变得快活时，他们就会变得充满活力。
英文例句及其中文翻译：
The party became pvely as more people arrived. (随着更多人的到来，聚会变得越来越热闹。)
The music made the atmosphere pvely. (音乐使气氛变得活跃。)
The children's faces became pvely as they opened their presents. (当孩子们打开礼物时，他们的脸上变得快活。)