知道底细to know how things stand
厂里的事他心中有底。
He had a clear idea about matters at the factory.
有把握to be fully prepared
我心里完全有底，办得到。
I'm totally confident that I can handle things.
汉译英翻译词典收录86165条汉英翻译词条，基本涵盖了全部常用中文字词的英语拼写、翻译、音标、读音、用法、例句等，是英语学习的有利工具。