biro

名词 biro:

1. a pen that has a small metal ball as the point of transfer of ink to paper
   同义词：ballpoint, ballpoint pen, ballpen

1. These biros retail at/for 70p.
   这些圆珠笔零售价为70便士。
2. You may write in biro or pencil.
   你用圆珠笔或铅笔书写均可。
3. Laszlo Biro invented the ball-point pen.
   拉斯洛·拜罗发明了圆珠笔。