吃透英语课本，提升在校竞争力
n. 圆珠笔；原子笔
复数：ballpoints
If you twist the shaft in one way it becomes a ballpoint pen.
如果你以某种方式转动笔杆，它就变成了一支圆珠笔。
Laptop, flash disk, a ballpoint pen, a pencil, a notebook, a pair of glasses, cell phone, charger, moisture lotion, … Oh, that is too much.
笔记本电脑，闪存，一致圆珠笔，一支钢笔，一本笔记本，一副眼镜，手机，保湿液，… 噢，太多了。
To mouse proof your house, 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。
She bought a new ballpoint pen.
她买了一支新的圆珠笔。
ballpoint pen
n. 原子笔，圆珠笔
n.圆珠笔
ball-point pen
