Cách sử dụng
Ink is a substance that is used to write or draw on paper or other surfaces. It can be found in pens, markers, printers, and other writing or drawing tools. Ink is used for everyday writing, creating artwork, and printing text and images on paper. It is important to choose the right type of ink for the tool you are using and the surface you are writing on, as different inks have different properties and can produce different effects.