Most melanomas are black or brown. 大多數黑色素瘤是黑色或褐色的。
The pigment absorbs the radiation and protects cells from damage. 黑色素可以吸收輻射，保護你的細胞不受損傷。
Black carbon absorbs solar radiation, warming the atmosphere. 炭黑吸收陽(yáng)光輻射，讓大氣增溫。
The fragmentation mechanism of the carbon black was analysed. 分析了炭黑在氣力輸送過(guò)程中的破碎機理。
Graffiti appeared on a wall in ugly black paint accusing Laith of selling information about insurgents to the military. 還有人用嚇人的黑色顏料在墻上涂寫(xiě)，指責他將有關(guān)伊拉克暴民的消息賣(mài)給美軍。
