key以下是什么意思啊

key

n.钥匙;关键;要诀;(计算机或打字机的)键；

v.用键盘输入;键入;用钥匙划坏(汽车)；

adj.最重要的;主要的;关键的

例句

Cost was a key element in our decision.

价钱是我们决策时考虑的主要因素。

Good communication is key to our success.

良好的沟通是我们成功的关键。

These units played a key functional role in the military operation.

这些单位在军事行动中起到了主要的职能作用。

The president appears likely to change course on some key issues.

总统看起来可能要在某些重要问题上改变方针。

I can\'t think where I put the keys.

我想不起把钥匙放哪儿了。