| 单词 | knife edge |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔knife edge〕At the moment the election seems balanced on a knife edge.此刻看起来，选举尚未定局。剑桥高阶〔knife edge〕The economy is balanced on a knife edge between recovery and recession.经济在复苏和衰退的临界状态中保持着平衡。外研社新世纪〔knife edge〕World peace is on a knife edge.世界和平令人忧心。外研社新世纪〔knife-edge〕His future remains on a knife edge.他前途未卜。柯林斯高阶 |
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