间：空隙。空隙中容不下一根头发。比喻与灾祸相距极近或情势危急到极点。
(1) [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]∶中间放置不下一根头发,形容相距极微
律厤迭相治,其间不容发。——《大戴礼记》
(2) [the situation is extremely critical;within a hair of;within an inch of]∶比喻情势危急到极点
其出不出,间不容发。——汉· 枚乘《上书谏吴王》