quiet的名词是啥

But it was a different kind of quietness.

然而，却是另一种宁静。

In a living room environment, consumers demand quietness.

在客厅环境中，客户需要安静。

Behind that quietness his nerves are jangling, he's in a terrible state

表面看上去沉默不语，其实内心非常烦躁不安，他的情况糟透了。

I enjoy the quietness of the country.

我喜爱乡村的宁静。

She went on, boasting of her quietness, yet speaking with a kind of contained exaltation.

她滔滔不绝地说着。她自诩很平静，她的.口气却包含着一种强自抑制的兴奋情绪。