There is an overflow of cheap ballpoint pens in the market.

市场上圆珠。

I changed the ink cartridges in my ballpoint pen.

我换了圆珠里的墨水芯。

Most people now use ballpoints rather than ink.

现在多数人舍墨水而使用圆珠了。

A ballpoint pen is adequate for most ordinary purposes.

珠适合最普通的用途。

Whereabouts did I leave my ballpoint?

我把圆珠丢到什么地方了？

Emblema is available as fountain pen with 18K gold nib and ebonite feeder, rollerball pen and twist-action ballpoint pen.

徽章系列有18K金尖墨水、走珠和旋式可供选择。