| 单词 | knife-edge |
| 释义 | knife-edgeBrE /ˈnaɪf edʒ/ NAmE /ˈnaɪf edʒ/ noun [usually sing. ]the sharp edge of a knife 刀刃 ● on a ˈknife -edge (of a situation , etc .形势等) finely balanced between success and failure 胜负难料；成败未定◆ The economy is balanced on a knife -edge . 经济形势尚不明朗。(of a person 人) very worried or anxious about the result of sth 十分焦虑；急于知道结果 |
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