These were very, very sharp instruments of great pain.

这些非常锐利的武器能带来剧烈的疼痛。

This has been done, said I, examining the wound, by a very heavy and sharp instrument.

这是用一件非常沉重、锋利的器具砍的。我边检查伤口边说道。

A very sharp instrument had been used.

是极端锋利的器械所为。

In most cases, people would stick a sharp instrument into a smallpox-infected pustule to collect just a little material from the disease.

在大多数情况下，人们会将尖锐的器械刺入天花感染者的脓疱中，收集一些天花物质。

" To chop down" means to take a sharp instrument, an axe, and cut the tree down.

“砍”就是拿利器，斧头，砍树。

A " sword" is a long, sharp instrument; it's a weapon that you hurt or kill someone with.

“刀” 是长而锋利的器具；它是您用来伤害或杀死某人的武器。

" To cut off" means to use scissors, a knife, or some other sharp instrument to separate a piece of something from the whole, from the main body.

“切断”是指用剪刀、小刀或其他利器将某物的一部分从整体上，从主体上分开。