模仿文本： In November of last year, former Ukrainian President Viktor Yanukovych made a decision that would prove a catalyst for political upheaval, bloodshed and a looming threat of a new cold war. He decided against signing a partnership agreement with the European Union in favour of closer ties to Russia, including a customs deal and cheap gas. 

 

译文：去年十一月，乌克兰前总统尤先科做出了一个决定，这个决定后来引发了政治剧变和流血事件，还隐现着可能的新一轮冷战。他当时决定不和欧盟签署伙伴协议，而选择与俄罗斯走得更近一些，协议中包括了关税协定和廉价天然气。