易混淆的单词： OCHRE

They also found ochre , bone , charcoal , grindstones and hammerstones .

他们还发现了赭石、骨头、木炭、研磨石和石锤。

It is also known as ochre sea star .

它以赭色海星而闻名于世。

Yet in 1991 , the excavation of 77000-year-old beads and engraved shards of red ochre in south africa upended klein 's hypothesis .

然而，1991年，南非挖掘出的77000年前的珠子和红色赭石的雕刻碎片颠覆了克莱因的假设。

Creating paint from charcoal , iron-rich ochre , crumbled animal bones , and urine meant understanding how materials could combine to form substances with new properties .

用木炭，富含铁的赭石，动物的碎骨，尿作绘画，意味着史前人明白怎样的材料结合能形成具有新特性的物质。

The researchers say the ochre was probably rubbed on quartzite slabs to create a fine powder . It was then mixed and heated with other crushed substances , including other stones or mammal-bone .

研究人员说，很可能是在青石板上研磨赭石获取细粉，然后再与其他物质，包括其它种类的石头和哺乳动物骨头，混合并加热。