black positive paper 黑色相片纸
black positive gel 黑色正电胶
organic black positive gel 有机黑色正电胶
motion picture black-white positive 黑白电影正片
black and white dup-positive film 黑白反正片
black plate positive 黑版阳像
black white positive film 黑白正片
black and white positive film 黑白正片
But to the extent that it celebrates black culture and nourishes black pride, it is a positive, important, undoubtedly permanent phenomenon.
但是从庆祝黑人文化和培养黑人自尊的意义上看，这无疑是一种积极的重要的恒久的现象。
As opposed to black, white usually has a positive connotation.
与黑色不同，白色常有肯定的含义。
For example, whenever you have a color display you might want to render balances for a bank account as black Numbers if they are positive, and as red Numbers if they are negative.
例如，如果有彩色显示器时，可能想用不同颜色来表示银行帐户的余额，如果余额为正，则用黑色数字，如果余额为负，则用红色数字。
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