情不自禁的意思是什么简单说一下

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诺亚方舟漂流在海上，数周都看不到陆地，方舟粮食库存在不断减少，食肉动物和食草动物之间脆弱的和平随时可能被打破。芬妮和莉亚连同船上最后的食物，在一次意外中落入海里。莉亚和新朋友果冻飘到一座岛屿上，而芬妮落入一个被火山威胁的同类部落里。方舟登岛，火山突然爆发，芬妮联同大家克服了危机后，再次开启新的征程。。Lulu and Judy Geeson continue their earlier roles and come to the farewell party. Thackeray announces that he is leaving for an inner-city school in Chicago where he will teach again. In Chicago, he meets a former colleague who is the principal of the school. Thackeray learns that there is an A class with good students and an H (for "horror") class for the no-gooders. He convin...。