be your own worst enemy act contrary to your own interests; be self-destructive.
1993Richard Lowe & William ShawTravellers We convinced ourselves that everything was against us but the truth was we were probably our own worst enemies.
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。