why keep a dog and bark yourself? idiom UK saying
既然花了钱让别人为你代劳，为何还亲自动手？
said when you want to know why someone would do something himself or herself when that person already pays someone else to do it
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。