变强用英语怎么说

"变强"用英语可以说成 "to become stronger"。
其中，"become"是动词，意思是"变得"；"stronger"是形容词，意思是"更强壮"。
例句：
He worked hard to become stronger. 他努力工作变得更强壮。
She's determined to become stronger after her injury. 她下定决心在受伤后变得更强壮。
The company has become stronger after the merger. 公司在合并后变得更强壮。