edge：基本意思是“边缘；优势；刀刃；锋利”表动词， 使锐利；将…开刃；给…加上边。
verge：基本意思是“边缘；绿地；极限；山墙突瓦；权杖（作为职位标志）”表动词，濒临，接近；趋向；处在边缘。
They are on the verge of signing a new contract.
他们即将签订一份新的合同。
The peace talks were on the verge of collapse.
和平谈判濒于破裂。
She paused on the edge, trying to regain her balance.
她在边缘上暂停下来，努力恢复平衡。
Her show now has a hard political edge to it.
她现在的表演具有强烈的政治性。
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