The letter was handwritten in black ink.

这封信是用黑墨水手写的。

The desk spotted with black ink.

这张桌子上墨迹斑斑。

She wrote a letter in black ink.

她用黑色的墨水写信。

He signed his name in black ink.

他以黑墨水签下名字。

A: Do you carry black ink?

A：你们有黑墨水卖吗？