Use decent paper in a neutral, soft colour such as cream or white, and write with classy black or brown ink - no blues, greens or reds!

用纸要体面，纸的颜色要柔和、不可艳丽，就像奶油或者蛋白一样；要用黑色或棕色墨水——不要用蓝色、绿色，更不要用红色！

youdao

This has permitted the publisher to illustrate 60 of Picasso's works in colour, a big advance on the first two volumes which were illustrated entirely in black and white.

此举让出版商得以用彩色印刷出毕加索的60个作品，这对于前两部传记中的黑白印刷是一个很大的进步。

youdao

Amazon said it would be able to print books in both full colour and black and white and said the books would be "virtually indistinguishable" from traditionally printed titles.

亚马逊表示，它能够印刷全彩色和黑白书籍，这将和传统书籍“毫无区别”。

youdao

But where she had found grace and texture in black and white, colour now provided beauty in correspondences.

ECONOMIST: Helen Levitt

Shot predominantly in black and white, with spot colour for a Jewish child's red coat the film's unique identifying mark it recalls the tradition of post-war Italian neo-realism and the even older photographs of Roman Vishniac of Jewish life in Poland before the Nazis.

ECONOMIST: A new roll for film

For many photographers it is one or the other, as to shoot in both colour and black and white at the same time is not something that many can achieve.

BBC: Rene Burri in colour