英语短语"in sb.'s shoes"（也常说"put oneself in sb.'s shoes"）是一个比喻性表达，核心含义是：
这个短语的字面是“穿着某人的鞋子”，通过“代入对方的‘物理位置’”类比“代入对方的‘心理/生活处境’”，形象地表达“换位思考”的动作。
该短语通常用于建议、共情或假设场景，常见搭配有：
"If I were in your shoes..."：如果我是你的话（用于给出建议）；
"Put yourself in sb.'s shoes."：设身处地为某人想想（用于提醒换位思考）；
"I can't imagine being in her shoes."：我无法想象处于她的境地（表达对对方处境的同情/理解）。
建议场景：If I were in your shoes, I'd apologize first—she's really hurt.（如果我是你，我会先道歉——她真的很受伤。）
共情场景：Try to put yourself in his shoes: he lost his job and his dad is in the hospital.（试着站在他的角度想想：他丢了工作，爸爸还在住院。）
表达同情：I can't believe you're in such a tough spot. I'd be stressed out if I were in your shoes.（我不敢相信你处境这么难。如果我是你，肯定会压力山大。）
短语中的shoes始终用复数（因为“鞋子”是成对的，也暗指“完整的处境”）；
同义表达："walk in sb.'s shoes"（更强调“经历对方的过程”，比如You don't know what it's like until you walk in her shoes.）；
反义："be out of sb.'s shoes"（不常用，指“脱离某人的处境”）。
总结来说，"in sb.'s shoes"是一个高频口语表达，用于引导他人或自己换位思考，理解对方的处境。