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。 (Take note: It is best to attempt this on a monster that may be by yourself with no other monsters around it in an effort to avert mis-clicks, as mis-clicking will take in the taming merchandise whether or not you clicked about the monster.) ... https://pet-system-di-ragnarok-on08305.shotblogs.com/an-unbiased-view-of-pet-system-di-ragnarok-online-51276092