| 短语 | on a knife-edge |
| 释义 | on a ˈknife-edge1(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。2(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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