youdao

In 1991, she discovered megafauna bones directly adjacent to stone tools—a headline-making find.

1991年，她在石器附近发现了巨型动物的骨头——这是头条新闻。

youdao

The development of industry has been a gradual process throughout human existence, from stone tools to modern technology.

从石器工具演进到现代技术，工业的发展是一个贯穿人类生存的渐进过程。

youdao

The ancestral Pueblo people used stone tools to widen the small natural openings in the face of the canyon walls.

VOA: special.2010.07.05

Other artefacts the team examined included 14 stone tools, which were radiocarbon-dated to between 2090 and 2540BC.

BBC: Maize was key in early Andean civilisation, study shows

Traces of other stone tools such as scrapers have been estimated as dating back more than 50, 000 years.

BBC: Desert finds challenge horse taming ideas

In West Africa, apes at several locations use wood or stone tools to crack nuts to feed on the kernels.

BBC: Cultural habits of chimps