“不用谢”常见的英语表达有：“You're welcome.” 、“Not at all.” 、“Don't mention it.” 、“My pleasure.” 、“It's a pleasure.” 。
“You're welcome.” 是最常见和通用的回答，表示“不客气”。例如：“Thank you for helping me.” “You're welcome.”
“Not at all.” 语气比较随意，也表示“一点也不；别客气”。比如：“Thank you very much.” “Not at all.”
“Don't mention it.” 意思是“别提了，别客气”，通常用于回应别人的感谢。像：“Thanks for your advice.” “Don't mention it.”
“My pleasure.” 和 “It's a pleasure.” 更强调为对方服务或帮忙是自己的荣幸。如：“Thank you for driving me home.” “My pleasure.” 或者 “It's a pleasure.”
