Dr. brooks noted this week that large quantities of ocher had been found elsewhere in africa even before the 1 00000 - year-old workshop .

布鲁克斯博士在这周指出，在发现10万年之久的作坊之前，科学家们已经在非洲其它地方发现了大量赭石。

To preserve and develop these endangering languages , the author thinks that these ethnics ma have good education of national common spoken language an as to create an environment of equal intercourse with ocher ethnics .

要保留和发展这些濒危语言，笔者认为这些民族必须得到良好的普通话（即国家通用语言）教育，以便创造与各民族进行平等交际的环境。