1、一发之差
...hairpiece...hair-raising令人恐惧的；惊心动魄...hairbreadth一发之差，极小的距离...hairbrush梳子，发刷...
2、间不容发的宽度
间不容发的宽度(hairbreadth), 此释义来源于网络辞典。
hairbreadth escape死里逃生;九死一生
hairbreadth tuning高精度调谐
to a hairbreadth分毫不差地
within a hairbreadth险些儿
by a hairbreadth间不容发;以一发之差
escape death by a hairbreadth九死一生