Gb	Eng
那些男孩子为几支圆珠笔而争吵起来了。	The boys were bickering over some ballpoints.
这些圆珠笔零售价为70便士.	These biros retail at/for 70p.
拉斯洛·拜罗发明了圆珠笔.	Laszlo Biro invented the ball-point pen.
你用圆珠笔或铅笔书写均可.	You may write in biro or pencil.