一个导游人员估计，就在桂林地区，大约就有10万名导游人员（译者注：不能想象有10万名导游，但原文就是这样写的。
One tour guide estimated that there were 100, 000 tour guides in Guilin ares alone.
本文研究影响桂林地区稻谷产量诸因素的重要性，建立数学模型，并进行预测。
This paper studies the importance of the factors which influence the rice product of Guilin District, fits the models and predicts product.
前言：目的：了解桂林地区高中生心理健康状况，为开展心理咨询和心理卫生保健服务提供依据。
Objective: to learn psychological health status of senior high school students in Guilin Region, in order to take consultation and service for mental problems.
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