He snapped the cap on his ballpoint.(他吧嗒一聲扣上圓珠筆的筆帽。)

Please write with a ballpoint or fountain pen.(請用圓珠筆或鋼筆寫。)

I took a ballpoint pen and punched a hole in the carton.(我拿了一支圓珠筆在紙板箱上戳了個孔。)

What do you think of this kind of ballpoint pen?(你認為這種圓珠筆怎么樣？)

The stethoscope is older than the x-ray, the ballpoint pen, Popular Science and pretty much everything else in your doctor's office.(聽診器比X射線、圓珠筆、《大眾科學》以及你醫生診所里絕大部分物件還要古老。)

Why doesn't he use a ballpoint, or at least a fountain pen?(他為什么不用圓珠筆，至少是自來水筆？)

You can try out this ballpoint pen.(你可以試試這支圓珠筆。)

The diary comes complete with a gold ballpoint pen.(該日記本還配有一支金圓珠筆。)

Weird Fact: a mouse can fit through a hole the size of a ballpoint pen.(怪異的事實：能鉆進圓珠筆洞大小的老鼠。)

The blue ballpoint pen is mine.(藍色的圓珠筆是我的。)