52. What do we learn from some studies about uncontrolled tourism development?

52. 关于旅游业的恣意发展，我们从一些研究中了解到什么？

Uncontrolled tourism development has become a primary driver of social and environmental disruption.

旅游业的恣意发展已成为社会、环境破坏的主要驱动因素。

Once clean water is dirty from tourism development, population growth and water mismanagement.

曾经干净的水源因为旅游发展、人口增长和管理不善而变得脏污。

This brings enormous opportunities to his hometown's cultural and tourism development.

这为他家乡的文化和旅游发展带来了巨大机遇。

I hope the G20 Summit would run smoothly and further improve tourism development because new Sedua District relies heavily on the tourism sector.

我希望 G20 峰会能够顺利进行，并进一步促进旅游业的发展，因为新塞杜瓦区非常依赖旅游业。