第二，一旦完全进入睡眠状态，非快速眼动期间血液中的二氧化碳增加，氧气减少。
Second, once sleep is fully obtained, there is an increase of carbon dioxide and a decrease of oxygen in the blood that persists during NREM.
一旦我们到达第二点，就有一条同时存在的曲线。
And once we reach point two, then we find a coexistence curve.
第二是，一旦实施新的法规，危机就会减少，从中获得的巨大回报就可以抵消第一点影响。
Second, and offsetting the first effect, once the new rules are in place the benefits from having fewer crises are big.
应用推荐