importance是可數名詞嗎?

　　Number the car's features from 1 to 10 according to importance.

　　將車的特征從1到10編號按重要性一一列出。

　　State your reasons in order of importance.

　　按重要性順序陳述你的理由。

　　Experience is what matters ─ age is of secondary importance.

　　重要的是經驗——年齡是次要的。

　　Reading is of vital importance in language learning.

　　閱讀在語言學習中至關重要。

　　It's a matter of the greatest importance to me.

　　這對我來說是最重要的事情。