剑桥的官方真题可不便宜，动不动五、六十，七、八十一本，整个几套，再加上点听力、口语、语法、阅读、写作的专项训练，四、五百块到小一千，就花出去了。 (Observe: It's best to try this over a monster that may be alone without any other monsters all around it in an effort to reduce mis-clicks, as mis-clicking will take in the taming product if you clicked over the monster.) 考题灵活注定备考时... https://pet-system-di-ragnarok-on52851.bcbloggers.com/36328152/a-secret-weapon-for-pet-system-di-ragnarok-online