Why do some people argue that entrance fees should be increased to limit the number of visitors?

为什么有些人认为应该提高门票价格以限制游客数量？

同一单元的其他句子

• The national park boasts a breathtaking landscape of towering mountains and crystal-clear lakes.国家公园拥有高耸的山脉和清澈湖泊的壮丽景观。
• Have you ever wandered through a botanical garden filled with exotic plants from around the world?你曾经漫步在一个充满世界各地奇异植物的植物园里吗？
• Visitors are prohibited from feeding the wildlife in the reserve to maintain ecological balance.为了保护生态平衡，禁止游客在保护区内喂养野生动物。
• The amusement park offers thrilling roller coasters and gentle carousels for all ages.游乐园为所有年龄段的人提供惊险的过山车和温和的旋转木马。
• How can we ensure that future generations will enjoy the beauty of these protected areas?我们如何确保子孙后代能享受这些保护区的美丽？