translation.en: If you give mice hydrogen sulfide, you can lower their demand for oxygen, and you can put them into oxygen concentrations that are as low as 5,000 feet above the top of Mt. Everest, and they can sit there for hours, and there's no problem.
translation.zh: 如果给老鼠吸入硫化氢， 就可以降低其对氧的需求， 可以把它们放到氧气浓度 相当于珠穆朗玛峰顶峰再高五千英尺以上的空气 它们可以呆在那里好几个小时，一点问题也没有。