ploy
词根词缀：
deploy v. 调度；部署（部队）
de 使… + ploy 用 → 使用〔部队〕→ 调度；部署〔部队〕
employ v. 雇用；运用
em 使… + ploy 用 → 使用 → 雇用
exploit v. 剥削；开发利用
ex 出 + ploit 用 → 利用出来 → 开发利用
ploy n. （取胜的）策略
redeploy v. 重新部署
re 重新 + deploy 调度；部署（部队）→ 重新部署
数据来源：新东方英语词汇速记大全
相关例句：
It is not conceivable that Britons could have been forced to vote a second time ( a standard EU ploy when voters rebel).
很难想象，英国人本可以被迫第二次投票的（一个欧盟对付选民反对时的标准策略）。
As a political ploy against mayor Ahn before the elections.
不过是在安市长选举之前的一次政治策略。
In one sense, this is a dangerous ploy.
从某种程度上说，这是一个危险的策划。
They appear to be well-organised, even claiming that letting the rebels into the city was a ploy.
他们似乎精心组织，甚至声称让反政府武装入城是一项策略。
However, if your friend pretends over and over again to try and hit you, you can also enter a habituation learning phase, where you stop flinching, since you realize that it's all just a ploy.
但如果你的朋友总是假装一次又一次的这样做，你也可能进入到习惯性学习阶段，这时你不再退缩，因为你认识到那仅仅是个假象。
India Against Corruption, a grass-roots movement that has spawned an anticorruption political party called the Aam Admi Party, alleged that the transactions amounted to a ploy for DLF to give the Gandhi family property and money to curry favor.
印度反腐败组织（该组织作为一项草根运动推动了反腐败政党平民党（Aam Admi Party）的建立）称，这些交易是DLF的一种策略，旨在用房地产和金钱来贿赂甘地家族。