tall/great oaks from little acorns grow idiom saying
参天巨树萌生于幼籽；合抱之木生于毫末
said about organizations or plans that start off very small or simple and become extremely large or successful
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。