vt.
阻挠；挫败；使成泡影：
The enemy's attack was foiled.
敌人的进攻被挫败了。
His attempt to deceive us was foiled.
他企图欺骗我们，但最终失败了。
【狩猎】搞乱(嗅迹或足迹)
[古语]践踏
n.
[古语](野兽的)嗅迹，兽迹
[古语]挫败；击退；阻止
近义词:
frustrate
短语:
break one's foil
【狩猎】(猎物)从原路返回后逃脱
run (upon) the foil
【狩猎】(猎物)奔回原路(以搅乱踪迹