The oceans were populated by anaerobic microbes.

海洋充满了生物。

So when we dry the soil, that anaerobic microbial that's living in that soup, that mushy soil, either dies or goes dormant.

因此，当我们干燥壤时，生活在汤、壤的生物要么死亡，要么进入休眠态。

Anaerobic organisms make a lot of  gas, so James has learned the hard way to make sure he's keeping track of any  signs of pressure building up in the jar.

生物会产生大量气体, 所以詹姆斯已经学会了艰难的方法来确保他能够跟踪罐子里压力增加的任何迹象。