know what you are doing idiom
掌握有效做某事的技能(或知识)
to have the skills and knowledge to do something effectively
You don't need to tell me - I know what I'm doing! 你不用告诉我——我能应付得了!
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。