黑渍的英文：
ink stain

There was an ink blot.
那儿曾有一块墨迹。

There's little ink in the ink bottle.
墨水瓶里几乎没墨水了。

Permanent inks: Inks which do not fade. Also called Lightfast inks.
耐久墨:不会褪色的油墨。亦称耐光油墨。

Ink receptivity: Uniform acceptability of ink on paper surface.
受墨度:纸面受墨的平均程度。

There was a stain of ink left on the desk.
桌上留有墨水的污点。

There was a stain of ink left on the desk.
桌上留有墨水的污点。

soil or stain with a splashed liquid.
用溅出的液体弄脏或沾污。

To spot or stain, as with a discoloring substance.
玷污，弄赃因某种褪色物质弄脏、染污

True Blue will never stain
真金不怕火炼

Blood stained the blanket.
血沾污了毯子。