A lowlander exposed to the low oxygen concentrations of high elevations can quickly fall victim to altitude sickness, whose symptoms include nausea, dizziness, and fatigue.
生活于平地的人一旦暴露在高海拔环境中,因为缺氧立即会出现高原反应:恶心,眩晕及乏力。
But if a lowlander stays in this high-altitude environment for too long, the adaptation starts to turn against his or her health.