圆珠笔

• Dating of ballpoint inks
  圆珠笔油墨字迹书写时间鉴别的研究
• These biros retail at / for 70p
  这些圆珠笔零售价为70便士
• Huh ? looks like a ball point pen ,
  啊?看起来像个圆珠笔,
• On average , 100 people choke to death on ballpoint pens every year
  平均每年有100个人因为圆珠笔窒息而死。
• Woman : i am using a ballpoint
  女人：我在用圆珠笔。
• I don ' t have any ball point pens
  我没有圆珠笔。
• Xiao yun : hi , xiao yu . i want to buy a ball pen . i choose this one
  小云:嗨,小雨.我想买支圆珠笔。我选了这支。
• It ' s a normal ballpoint pen
  这是枝普通的圆珠笔
• Can you give me two refill of each color for the ballpoint pen
  能不能请价钱给这支圆珠笔每种颜色配两根替换笔芯？
• Gel ink ball pens and refills
  中性圆珠笔和笔芯