十二年过去了，凯西长成了一个朝气蓬勃的漂亮女孩，她很少走出画眉山庄。
Twelve years on, Cathy has grown into a beautiful, high-spirited girl who has rarely passed outside the borders of the Grange.
墙的前面站着一群十多岁的活泼、朝气蓬勃的青少年，他们正笑得合不拢嘴。
In front of it stood a bunch of 3 bubbly, youthful adolescent teens, grinning ear-to-ear.
他们最强烈的兴趣是知识和理解，而最能够令他们愉悦的是朝气蓬勃的精神生活。
Their most passionate interests are understanding and knowledge, and their greatest pleasure a lively life of the mind.
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