Definition
A very small distance or margin; a narrow escape or near miss.
毫釐之差
The car passed the pedestrian by a hair's breadth.
汽車以毫釐之差從行人旁邊經過。
Their opinions differ by only a hair's breadth; they will soon reach a consensus.
他們的意見只有毫釐之差；他們很快就會達成共識。
The project came within a hair's breadth of failure, barely succeeding at the last moment.
這個項目在失敗的邊緣勉強成功，最後一刻才完成。