quality可數嗎

　　例句

　　Everyone can greatly improve the quality of life

　　每個人都可以大大改善生活質量。

　　I assure you of its quality.

　　我向你保證它的品質。

　　Not a high quality sound AT ALL, but I have fun with it.

　　沒有一個高品質的聲音在所有，但我已與它的樂趣。

　　Quality over quantity should be your goal.

　　您的目標應該是質量勝過數量。