ballpoint pen

• 一种书写工具，笔尖有一个能转动的小圆珠，通过圆珠滚动将墨水写在纸上，常用于日常书写。

A writing instrument that uses a small rotating ball to dispense ink onto paper, commonly used for everyday writing.

1. Writing instrumentA1formal

   A pen that uses a small rotating ball at the tip to dispense ink, commonly used for everyday writing.

   圆珠笔

   • She signed the contract with a blue ballpoint pen.
   • I always carry a ballpoint pen in my pocket.
   • The ink in a ballpoint pen dries quickly.