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1·I didn't give the dragoman a fat tip.

我没有给那个导游优厚的小费。

2·Several key technologies are discussed in the paper, and the virtual dragoman technology is applied in virtual tourism system, the result is satisfying.

本文讨论了基于计算机动画的虚拟导游的关键技术，并将该技术应用于虚拟旅游系统，效果良好。