ink是不是可數名詞?

　　例句：

　　These ink stains won't wash out.

　　這些墨漬洗不掉。

　　The ink had faded to invisibility.

　　墨水已退色看不見了。

　　The letter was handwritten in black ink.

　　這封信是用黑墨水手寫的。

　　The message was written in indelible ink.

　　這條信息是用不褪色的墨水寫的。

　　These ink stains won't come out of my dress.

　　我衣服上的這些墨水斑點洗不掉。