Part of the crack is cut by drill, the crack surface is dust-colour under naked eyes.

钻孔截取裂纹局部，肉眼可见裂纹表面呈暗褐色。

youdao

For instance, if you are wore in the suit in a brown or black, the dust-colour or quite shallow ash bright color will letting you is better than wearing black.

例如，如果你穿着一件褐色或者黑色的套装，灰褐色或浅浅的灰亮色会让你比穿黑色更好。

youdao

I am here not is discuss black and profoundly green which nice, but argue to be insolated of antique bronze work color and smaller inconsistency of its of dust-colour.

我在这里不是讨论黑与深绿哪个好，而是讨论被晒的古铜色与灰褐色的之间的更细微的差别。

youdao

They contain classical, medieval, theological and philosophical works and come wrapped in dust-jackets of a single sombre colour plus white.

ECONOMIST: G?tterd?mmerung postponed