这些问题主要涉及海洋和大气层，而海洋和大气层是人类所共有的，是维持生命系统的基础。

These problems involve primarily the oceans and atmosphere-the Commons which are Shared by all and are the basis of our life-support system.

youdao

但是把成吨的设备运到月球去制造燃料，并为月球基地建造一个生命维持系统，那不是太贵了吗？

But hauling tons of equipment to the moon to make fuel and build a life support system for a moon base, wouldn't that be too expensive?

youdao

迄今为止，欧洲央行的流动性一直维持着银行系统的生命。

So far the liquidity of the European Central Bank (ECB) has kept the system alive.

youdao

So suppose,gruesome as it was,this weekend I'm in some horrible accident and my torso gets destroyed and they keep my brain on life support, oxygenating it just long enough to do some radical surgery into some spare torsos.

来做个可怕的假设，我在周末惨遭事故,肉体完全损坏，只剩大脑靠系统维持生命，持续补氧到能被高超手术植入另外的身体。

耶鲁公开课 - 死亡课程节选