ballpoint

US /ˈbɑːl.pɔɪnt/
UK /ˈbɑːl.pɔɪnt/
"ballpoint" picture
1.

圆珠笔

a pen with a tiny ball as its writing point

:
Please sign the document with a ballpoint pen.
请用圆珠笔签署文件。
I prefer writing with a ballpoint over a fountain pen.
我更喜欢用圆珠笔而不是钢笔书写。