tell (or teach) someone a thing or two impart useful information or experience. informal
2013CNN transcripts He's turning the tables on these teenagers and teaching them a thing or two about the power of social media.
英语词组固定搭配大全包含15956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。