Writing or print:书写或印刷:saw their words in black and white.看见他们的字印了出来
A visual medium, as in photography or printmaking, employing only black and white or black, white, and values of gray:黑白:如摄影或印刷的一种视觉手段,只采用黑白两色或黑色、白色和灰色的明暗配合:a film shot in black and white; a painting reproduced in black and white.黑白摄影的胶片;水墨画