换个甲用英语怎么说

“换个甲”通常用英文翻译为“change one's tune”或“change one's attitude/behavior”。

“Change one's tune”的来源可以追溯到17世纪的英国。在那个时候，“tune”有时被用来指某人的态度和行为，就像“sing a different tune”这个说法。所以“change one's tune”就是指某人改变了他们的态度和行为。

下面是一些带有“change one's tune”的例句，并带有中文翻译：

"After years of denying that climate change was real, the politician finally changed his tune and began to take action."
(“在否认气候变化是真实的多年后，这位政治家终于换了个甲，开始采取行动。”)
"I didn't like it when she changed her tune and started acting like she didn't know me."
(“当她换个甲开始像不认识我一样表现时，我并不喜欢。”)
"He keeps changing his tune on what he wants to do after graduation."
(“他在毕业后想做什么上一直换甲。”)