In former times, prisoners' heads were impaled on pointed stakes. 从前的人把监犯的头钉在尖桩上。
A pointed stake often driven into the ground to support a fence, secure a tent, tether animals, mark points in surveying, or, when pointed at the top, serve as a defense. 尖木桩通常插入地面的尖木桩，用来支撑篱笆、固定帐篷、拴动物，在勘探时作标记，当尖头在顶端时则用作防御工具
