研究人员一度以为，只有单细胞生物，如原核生物和原生动物，才能在深海缺氧环境中生活。
Researchers had thought that only single-celled organisms such as prokaryotes and protozoa could live in the oxygen-deprived environments of the deepest ocean.
全球气候、区域降雨及河流正在逐渐被海藻类污染，缺氧引起鱼类死亡，影响当地居民的生活及休闲娱乐。
Many freshwater lakes and rivers were becoming contaminated by algae, starving them of oxygen and killing off fish, affecting local livelihoods and recreation for local populations.
其中有些问题，与在外层空间生活时所遇到的一样，是压力。缺氧和失重现象。
Some of these problems, similar to those of living in outer space, are pressure, Lack of oxygen and weightlessness.
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。
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。
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.
应用推荐