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◎跋前疐后，跋前躓后báqián-zhìhòu，báqián-zhìhòu
[nonplus;be caught in a dilemma;encounter obstacles ahead and behind] 跋:踏，踩;疐:跌倒，也作“躓”。比喻進退兩難的處境
跋前躓后，動輒得咎?！?/span>唐·韓愈《進學解》
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