foiling

基本解释

Your father-in-law is telling you that story about foiling the pickpocket in Moscow -- for the fifth time.
你的岳父正给你讲述他在莫斯科挫败扒手的故事---已经能是第五次了。
Meanwhile, hardly a week has gone by without the government trumpeting some new arrest or the foiling of another bomb plot.
同时，政府每周都在不停大肆宣扬种种反恐成就，譬如成功实施了新抓捕或又一次挫败了爆炸阴谋。
Even as French lawmakers prepared to vote on Mr. Sarkozy’s proposal, the Pirate Bay was offering a new service aimed at foiling both that plan and other efforts to track down file sharers.
甚至就在法国立法机关准备投票表决萨科齐总统的法案的同时，海盗湾正打算推出一项新服务，旨在阻挠该项法案以及其他查获文件共享者的努力。

Iran might find an Aegean island a handy way of foiling NATO's planned missile-defence shield.
ECONOMIST: Just imagine that countries still traded land for money
On another station, the man finds himself foiling a gang of jewel thieves.
NEWYORKER: The TV
Since speed is of the essence in foiling kidnaps, this made police more effective and kidnapping riskier for its perpetrators.
ECONOMIST: How mobile phones may help to deter kidnaps

Foil consists of sheets of metal as thin as paper. It is used to wrap food in.
any scent that obscures the trail left by a hunted animal
a light slender flexible sword tipped by a button and usually having a bell-shaped guard
If you foil someone's plan or attempt to do something, for example, to commit a crime, you succeed in stopping them from doing what they want.