a key ingredient的意思|示意

I've been thinking about simplicity a lot lately and I've identified a key ingredient to living a simplistic life; contentedness.

我最近一直在思考简单化的问题，而且我已经发现了保持简单生活的一个关键成分：知足。

Water is not only used as a key ingredient of human subsistence but also a source of oxygen and rocket fuel necessary for the human lunar bases.

水不仅是宇航员在月球上的重要生存资源，还是月球基地所需氧气和运载火箭燃料的来源。

The increase causes concern here since peppers are a key ingredient in almost every Indonesian meal.

红辣椒是印尼饮食的一种常用佐料，因此涨价引发了人们的担忧。

Holten Anderson says iron is a key ingredient that makes the adhesive strong and flexible.

安德森说铁是其中的关键元素，让粘合剂更加强健而富有弹性。

The cost of silicon, a key ingredient in competitors' cells but not in Solyndra's, fell sharply.

硅谷的成本急速下降，这是竞争者电池的一个关键优势，但Solyndra没有。

That's important because liquid water is a key ingredient for life.

这个发现之所以重要是因为液态水是生命的关键成份。