razor-edge

英['reɪzəedʒ] 美['reɪzəˌedʒ]
  • n.剃刀锋口;尖锐的山脊;紧急关头;鲜明的分界限
名词 razor edge:
  1. an edge that is as sharp as the cutting side of a razor

    1. Since he escaped from gaol, Tom has been living on a razor's edge, terrified of recapture.
      汤姆越狱后,时时如惊弓之鸟,生怕再次被捕。