This idiom means that a situation is so urgent that it cannot tolerate any delay.
刻指短暂的时间；缓延迟。指形势紧迫，一刻也不允许拖延。
宋·周密《齐东野语》帝王即位，即是好日，兼官历又吉，何疑？事不容缓。”
The patient's condition is critical and requires immediate surgery, but we must act now — the matter is truly urgent.
Learn the next connected idiom: 刻不容缓 (kè bù róng huǎn) → 缓兵之计 (huǎn bīng zhī jì)
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