间不容发 [jiàn bù róng fà]
1 中间放置不下一根头发,形容相距极微。
例 律厤迭相治,其间不容发。——《大戴礼记》
英 a seamless heavenly robe——flawless; by the skin of one's teeth; by a hair's breadth; the difference is as narrow as a hair's breadth;
2 比喻情势危急到极点。
例 其出不出,间不容发。——汉·枚乘《上书谏吴王》
英 the situation is extremely critical; within a hair of; within an inch of;