do yourself a mischiefBritish EnglishBrE informalINJURE to injure yourself slightly 〔轻微地〕伤害自己 If you try to lift that box, you’ll do yourself a mischief. 你要是想搬那个箱子,会伤着自己的。
do yourself a mischief• My objection to his high heels was that he would do himself a mischief if he had to bale out!
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