if it ain't broke, don't fix it idiom informal saying
不需修,别多手;不破就不修
said when you recognize that something is in a satisfactory state, and there is no reason to try to change it
江苏热线英汉汉英双解词典包含207361条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。