圆珠笔
a pen with a writing point that consists of a small metal ball that rotates in a socket and feeds ink from a reservoir
:
• Please sign the document with a ballpoint pen.
请用圆珠笔签署文件。
• I prefer writing with a ballpoint pen over a fountain pen.
我更喜欢用圆珠笔而不是钢笔书写。
