一線之間 yī xiàn zhī jiān

DEFINITIONS

  1. a hair's breadth apart
  2. a fine line
  3. a fine distinction

CHARACTERS

一 yī
HSK 1
one; a, an; alone
線 xiàn thread, line, wire; clue
之 zhī
HSK 4
marks preceding phrase as modifier of following phrase; it, him her, them; go to
間 jiān interval, space; place, between