His face was profoundly wrinkled and black, like a mask of obsidian.

脸很黑，有很深的皱纹，好像个黑曜石的面具。

Her brilliant obsidian eyes were unreadable, but her smile was friendly.

她明朗如黑曜石的眸子有着难以捉摸的神情，但她的微笑很友好。

But they did not know what was provided in exchange for the obsidian.

但是，与黑曜石进行交换的是何物呢？对此，科学家就无从得知了。

The obsidian was used in a number of tools with sharp or pointy edges.

黑曜石被用于很多工具的锐利边缘或尖刃处。

They also found tools made from obsidian, a volcanic rock that can have an extremely sharp edge.

科学家还发现了用黑曜石制成的工具，黑曜石是一种火山岩，其边缘锋利。

Also, in terms of ancient stone tools, they're gonna use things like obsidian, it's volcanic glass.

此外，就古代石器而言，他们会使用黑曜石，这是火山玻璃。

Found in modern day Turkey, these primitive mirrors were made out of a polished volcanic glass called obsidian.

在现代的土耳其发现，这些原始的镜子是由一种叫做黑曜石的抛光火山玻璃制成的。

Instead, they appear to have started trading because they needed obsidian for their farm tools and weapons.

相反，他们似乎已经开始交易，因为他们需要黑曜石来制作农具和武器。

" You're not being put off, " the Baron said, and he stared into the Sardaukar's obsidian eyes.

“你没有被推迟，”男爵说，他凝视着 Sardaukar 的黑曜石眼睛。

" The m-maesters think not, " Sam stammered. " The maesters say it comes from the fires of the earth. They call it obsidian" .

" 学——学士们认为不是，" 山姆结结巴巴地说，" 学士们说它是在地心深处用火锻造而成，他们称它为黑曜石。"