The items he creates are so small that most of them fit on the head of a pin.

他创造的东西非常小，大多数都可以放在针尖上。

youdao

Next to them a body slumped in an improbable pose - curled, stiff, yet balanced, delicately, as if on the head of a pin.

他们旁边躺着的一个人摆着一个几乎不可能的姿势——蜷曲着一动不动，仿佛是在一根大头针的针头上保持着微妙的平衡。

youdao

Part the hair down the middle from the forehead to the crown of the head, and pin the sections into place using bobby pins or hair clips.

将前额至公主头的中间部分向下梳，把这部分头发别到第一步中别过发卡的位置。

youdao

"I was trying," he said, "to put the history of mankind in one sentence." Later he said, "I am still trying to do it, but now I want to put it all on the head of a pin."

VOA: special.2010.01.03

We are in the realm, here, of angels dancing on the head of a pin.

BBC: Global warming: Andrew Pendleton and James Delingpole

Nine hundred million of these zinc oxide crystals could be spread across the head of a pin in a single layer.

FORBES: The Science of Small

Some 900 million of these zinc oxide crystals can fit in a single layer on the head of a pin.

FORBES: The science of small