刻不容缓

Explanation: Refers to the urgency of the situation, the moment will not allow delay. 　　Usage: The main predicate; as predicate, attributive, adverbial; describe the very tight 　　Source: Qing Li Ruzhen "Flowers in the Mirror": "Taiqian post-natal and childbirth the disease, not just urgent, and the two life and death." 　　Examples: Taiqian the disease postpartum and childbirth, not only ~, and two life and death. (Qing Li Ruzhen "Flowers in the Mirror" forty-back) 　　Results: Carved shop fire; squatting on the ground and other pants 　　Postscript: Carved shop fire; squatting on the ground and other pants 　　Riddle: Li and other stamp; not allowed more than fifteen minutes Thesaurus:  thing Unsuitable late, preoccupation