但是，埋藏在地下的温室气体会发生什么变化？关于这方面的研究很少。
But few studies have looked at what happens once the gas is in the ground.
医生们说，中暑的发生，有时候很少有征兆，甚至可能在你剧烈运动半小时后就会发生。
Heatstroke can strike with scant warning, even after as little as a half hour if you are exercising hard, doctors say.
这本书可以帮助解决这个问题，它向每个人展示了至今只有很少人知道的事情：创业公司的第一年会发生什么，那是真正的有生产力的时候，那才是一级方程式赛车，它开起来很怪，但的确跑的很快。
This book can help fix that problem, by showing everyone what, till now, only a handful people got to see: what happens in the first year of a startup. This is what real productivity looks like.
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