心胸狭隘的人的英文表达是 "narrow-minded person"。
"Narrow-minded" 这个词源于中世纪的英语，原意是 "having a pmited or narrow view or outlook; not open to new ideas or ways of thinking"，所以常用来形容心胸狭隘的人。
下面是一些英文例句及其中文翻译：
He's a narrow-minded person who always sticks to his own opinions and refuses to consider others. 他是一个心胸狭隘的人，总是坚持自己的观点，拒绝考虑别人的意见。
She's so narrow-minded that she won't even try new things. 她心胸狭隘得连新事物都不愿去尝试。
It's hard to have a meaningful conversation with a narrow-minded person who always shuts down any idea that differs from their own. 和心胸狭隘的人谈话很难有意义，他们总是抵制与自己不同的想法。