The result was a simple teardrop-shaped hand axe, but it was the world's first piece of advanced technology.

结果制作成了一把泪珠状手斧，尽管它非常简陋，却是世界上第一件先进的工具。

It was so superior to existing tools that soon others were following the inventor's lead and making hand axes of their own.

它优越于现存的工具，其他人很快群起而效之，纷纷制作了他们自己的手斧。

He handed the axe to George.

他把斧子递给了乔治。

And now archaeologists have examined another overlooked artifact-small stone flakes, typically thought to be by-products from the production of tools like hand axes and cleavers.

现在考古学家研究了另一件被忽视的人工制品——小石片，这通常被认为是手工斧和砍刀等工具生产的副产品。

And now archaeologists have examined another overlooked artifact—small stone flakes, typically thought to be by-products from the production of tools like hand axes and cleavers.

现在， 考古学家检查了另一件被忽视的文物——小石片，通常被认为是手斧和切肉刀等工具生产的副产品。