A leatherback may be able to pick up some body heat by basking at the surface; its dark, almost black body color may help it to absorb solar radiation.

棱皮龟可以通过在水面上晒太阳来为身体获取热量；深色近乎黑色的身体颜色可以帮助它吸收太阳辐射。

youdao

Such a surface would reflect no radiant energy, and hence would appear black in color.

这种表面不会反射辐射能，因此呈现黑色。

youdao

Imagine a way in which you could use the same pen to draw a black line on a white surface and a white line on a black surface without knowing what color the surface is.

想象一下你不用知道表面的颜色是什么，就可以用相同的画笔在白色的表面上绘制一条黑色的线并且在黑色的表面上绘制一条白色的线。

youdao

Huge swatches of neon yellows, reds and lime-green swiped across every surface try to provide the color-coding necessary to find one's way around within the vast black box.

WSJ: The Library's Future Is Not an Open Book | By Julie V. Iovine | Public Library Renovation