Now , why would he want to read a book about a four - eyed nigger 为什么他会喜欢看关于一个四眼黑鬼的书？
2.
Third , the possible areas of eyes are determined according to the rule of eye ’ s position . at last , the two marked black blocks representing the eye ’ s areas are fixed by making use of similarity 然后用人眼位置判定准则确定可能的人眼区域,用相似度准则从中标记出两眼黑块。
3.
Obsidian has been used since ancient days for making some of the oldest cultural artifacts developed by man . it was widely used by the mexicans for making images of their god tezcatlipoca and for polishing mirrors to be used to divine the future . in egypt , masks made of black obsidian have been found 也有可能是全部单色或有条纹或有斑点，最有名的是有彩虹闪光的彩虹黑曜岩rainbow obsidian ，并且有些条文呈椭圆形状，就形成俗称的单眼黑曜或者是双眼黑曜石了，而如果以价格来看，彩虹单眼黑曜及彩虹双眼黑曜是价格最高的，因为除了产量较为稀少之外，品相也相当的漂亮。
