The goal is to preserve this light comfortable level of air hunger for 2-3 minutes.
目的是保持这种轻微的缺氧的不舒服2 ~ 3分钟。
Shorts, light pajamas are often the most comfortable.
短裤或薄的睡衣是最舒服的。
While you'll always be more comfortable reading in good light, there's no evidence low light causes any permanent harm.
虽然在光线充足的环境下阅读总会令人感觉更舒服,但事实上现在还没有任何证据证明昏暗的灯光会影响视力。
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