词典释义：
prevent (something considered wrong or undesirable) from succeeding
挫败，阻挠（错误，令人不快的事）
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a brave policewoman foiled the armed robbery. 一勇敢女警挫败了这起持械抢劫。
frustrate the efforts or plans of
挫败，阻止…的努力（或计划）
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their rivals were foiled by the weather. 他们对手的企图因天气受挫。
【猎】 （猎物）搞乱，搅乱（嗅迹，足迹）。
【猎】 猎物足迹（或嗅迹）。
〈古〉 挫折；挫败，失败。
[mass noun]metal hammered or rolled into a thin flexible sheet, used chiefly for covering or wrapping food
箔，金属薄片。
a person or thing that contrasts with and so emphasizes and enhances the qualities of another
陪衬者，陪衬物
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his white cravat was a perfect foil for his bronzed features. 他的白色领结完美地衬托着他古铜色的面孔。
a thin leaf of metal placed under a precious stone to increase its brilliance
（宝石）衬箔。
【建筑】 叶形饰。
a light, blunt-edged fencing sword with a button on its point
花剑，轻剑。
each of the structures fitted to a hydrofoil's hull to lift it clear of the water at speed
（水翼艇的）水翼。
"Middle English （in the sense ‘trample down’）： perhaps from Old French
