n.

1. 铁笔；尖笔
2. 唱针
3. 描画针

n.

1. a hard point, typically of diamond or sapphire, following a groove in a gramophone record and transmitting the recorded sound for reproduction.
2. an ancient writing implement for scratching letters on wax-covered tablets.
   ▸a similar implement for engraving and tracing.
   ▸Computing  a pen-like device used to input handwritten text or drawings directly into a computer.