double up
柯林斯詞典
1. PHRASAL VERB If something doubles you up, or if you double up, you bend your body quickly or violently, for example, because you are laughing a lot or because you are feeling a lot of pain. 使猛地彎下腰去; 猛地彎下腰去
...a savage blow which doubled him up. …使他猛地彎下腰去的重重一擊。
2. PHRASAL VERB Double over means the same as . 使猛地彎下腰去; 猛地彎下腰去 (同)(double up)
Everyone was doubled over in laughter. 所有的人都笑彎了腰。
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