The diary comes complete with a gold ballpoint pen.

该日记本还配有一支金圆珠笔。

I took a ballpoint pen and punched a hole in the carton.

我拿了一支圆珠笔在纸板箱上戳了个孔。

Roll-on deodorant uses the same technology as the ballpoint pen.

Roll-on 除味剂采用的技术和圆珠笔一样。

Ink can be pretty tough to get out, but most ballpoint pen ink stains come out with lots of persistence and patience.

墨迹很难清除，不过，只要有足够的恒心与耐心，大部分圆珠笔印迹都是可以清除的。

To keep your house mouseproof , check all small openings with a ballpoint pen. If it fits the hole, it will let mice in.

要使你的房子里没有小老鼠，用圆珠笔来检查下所有的小洞。如果圆珠笔能放进去的话，那小老鼠就可能钻进去。