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

英英释义

名词 razor edge:

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

词汇搭配

• on the razor's edge 处于危险关头...
• razor edge 剃刀的锋口(危急关头...
• on a razor-edge 处于危险关头...
• on the razor-edge 处于危险关头...
• on a razor's edge 在锋口上
• keep on the razor-edge of something 不超过某事物的极限...