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燃:烧;萁:豆茎。用豆萁作燃料煮豆子。比喻兄弟间自相残杀。
[burn beanstalks to cook beans;fratricidal strife;fight among brothers is like to boiling beans with beanstalks] 语本出自曹植《七步诗》“煮豆燃豆萁”一句。比喻兄弟间不顾亲情,自相残杀