razor-edge

漢語翻譯

n. 剃刀的鋒口, 危急關頭, 鮮明的分界線

英文解釋：

名詞 razor-edge:

1. an edge that is as sharp as the cutting side of a razor
   同義詞：razor edge

例句：

1. Since he escaped from gaol, Tom has been living on a razor's edge, terrified of recapture.
   湯姆越獄後，時時如驚弓之鳥，生怕再次被捕。