But for marine ecologist Dave Johnston, the drone itself is a cutting edge tool for ocean science.

但对于海洋生态学家·翰斯顿来说，无人机本身就是一种研究海洋科学的尖端工具。

It includes a stone flake that might have been a cutting tool and the remains of woolly mammoth.

其中有一块可能是刀具的小石头片, 以及猛犸象的遗骸。

They were master of flintknappers meticulously chipping and sharpening pieces of flint to make spears and cutting tools.

他们擅长用打火石精细雕，用尖利的碎石片制作长矛以及削制工具。

And those tools were called a shepherd's crook, a long, rounded stick, and a billhook, a cutting tool.

这些工具被称为牧羊人的拐杖，一根又长又圆的棍子，还有一个钩镰，一种切割工具。

Marks on the bones are consistent with the same cutting tool.

骨头上一致的切削利器伤。

So astronomers would take razor-sharp cutting tools and slice these tiny pieces of glass, all in the dark.

因此，天文学家会在黑暗中使用锋利的切割工具切割这些微小的玻璃片。

The British media also reporting drones may have been used to smuggle in wire cutting tools used in a prison escape.

英国媒体还报道说，无人机可能被用来走私越狱时使用的钢丝切割工具。

Joanne was horrified by Halloween costumes of the Grim Reaper – an imaginary skeleton who wears a long black cloak, carries a sharp cutting tool and represents Death.

乔安妮被死神样式的万圣节服装吓坏了。“the Grim Reaper”是人们想象出来的一个骷髅，穿着黑色的长斗篷，拿着锋利的刀，它象征着死亡。