1、Employee puts in hours of physical or mental labor and employee draws out life-sustaining moola.
雇員投入數(shù)小時的體力或腦力勞動來得到維持生計的薪水。

2、Our lungs fuel us with oxygen, the body's life-sustaining gas.
我們的肺給我們泵入氧氣，我們維持生命的氣體。

3、However, there is no clear definition of what constitutes a life-sustaining therapy.
然而，對維持生命的治療的組成目前還沒有清楚的界定。