Rollerball pen
01
滚珠笔, 圆珠笔
a pen that uses a small rotating ball made of steel, carbide, or ceramic to dispense ink as it moves across a writing surface
例子
The office manager provided all employees with rollerball pens for filling out paperwork due to their ease of use and clean writing.
办公室经理为所有员工提供了圆珠笔用于填写文书，因为它们使用方便且书写清晰。
