1.He also struck a deal with Mazeppa, one of the Ukrainian Cossack leaders, who was eager to cast off the Russian yoke.
他还与一位乌克兰的哥萨克领袖马泽帕（Mazeppa）达成了一项协议，马泽帕一直渴望能够摆脱俄国的束缚。
2.Mazeppa offered to bring in 30, 000 of his own followers and to keep the Swedes well supplied from his own rich native grainlands.
马泽帕提出为查理的军队补充30000名自己的跟随者，并通过自己富庶的当地庄稼维持瑞典军队的良好供给。
3.Having betrayed Peter, Mazeppa was anxious to link up with the Swedes before his treason was discovered.
在背叛了彼得之后，马泽帕一直急切盼望在他的叛国行为被发现之前与瑞典人会师。
4.As a result, few of the Ukrainian Cossacks followed Mazeppa to the Swedish camp.
结果，只有很少的乌克兰哥萨克跟随马泽帕去了瑞典阵营。