quiet可數嗎

I was looking forward to a quiet evening at home.

我盼著在家過個恬靜的夜晚。

Business is usually quieter at this time of year.

每年這個時節，生意往往比較清淡。

I go to the library for a little peace and quiet.

我到圖書館去清靜一下。

'Be quiet,' said the teacher.

“安靜點！”老師說道。

Be quiet, I have something to say.

安靜，我有話要說。