礼貌的拒绝英文

A:Do you have time toning,I want have a dinner with you (你晚上有空吗？我想约你吃饭)B：I'd like to,but I need take a part-time job.（我很乐意去，但是我要去兼职。后面要去做什么事可以自己修改，这是英式英语跟美式英语礼貌性地婉拒）望采纳！谢谢

委婉的拒绝：Euphemistically refuse 如果是指对话中，要根据语境，比如：I have another choice.There is a good idea.Let's find a new way....