Typically, basaltic lava flows are glassy enough that in fact you would cut your hand. They can be extremely sharp.

特别的，这些玄武岩浆流玻璃状的可以锋利到切掉你的手。

They once generated enormous volumes of basaltic lava across Idaho’s Snake River Plain.

他们曾经 在爱达荷州的蛇河平原产生了大量的玄武岩熔岩。