stone tool

英汉例句

Recently, scientists have looked at what happens inside the brain when a stone tool is being made.
近来科学家研究了制造工具的过程人类大脑中的活动情况。他们采用现代医学扫瞄仪来观察当石匠加工石器时，大脑的哪部分会被使用到。
All around me, pieces of a fossil hippo skull were eroding out of the yellowish, pebbly sand. Nearby rested a teardrop-shaped stone tool, roughly five inches end to end.
周围到处都是河马头骨化石的碎片，它们都是从浅黄色的鹅卵石砂层被冲蚀出来的，边上还有一把泪珠状石质工具，长约12厘米。
"Now, when we imagine Lucy walking around the east African landscape looking for food, we can for the first time imagine her with a stone tool in hand looking for meat," said McPherron.
“现在，当我们想象‘露西’行走在东部非洲的景色之间，去寻找食物的时候，我们能够破天荒地想象她手里拿着石器工具在寻找肉类，”香农说。

We're going to need to turn over every stone and use every incremental tool that's going to help on the margin.
NPR: Ex-Rocket Scientist To Oversee Financial Bailout
When presented with a stick and a stone, they also picked the right tool for the job.
ECONOMIST: Tool use by non-tool-using animals