something that you say which means if you wait anxiously for something to happen, it seems to take a very long time.
There's no point sitting by the phone waiting for it to ring. A watched pot never boils.
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。