chalk

• Teachers usually write on the blackboard with chalk
  教师通常用粉笔在黑板上书写。
• Teachers won ' t write on the blackboard with chalk
  老师们将不用粉笔在黑板上书写。
• 12 monitor , would you please fetch some chalk for me
  班长，能帮我去拿些粉笔来吗？
• The teacher ' s chalk grated on the blackboard
  老师的粉笔在黑板上发出刺耳的摩擦声。
• Operations guide : mouse control , throwing chalk
  操作指南：鼠标控制,扔粉笔。
• The chalk flew up . there ' s a mark right there
  界线都溅起来了那里就有个球印
• He is writing on the blackboard with a piece of chalk
  他正用一支粉笔在黑板上写字。
• Can we simply chalk it up to & quot; cultural differences
  仅仅称之为“文化差异”吗？
• He filched a piece of chalk from the teacher ' s desk
  他从老师的书桌上偷取一支粉笔。
• Students chalk war games - 4455 miniclip games
  师生粉笔战攻略- 4399小游戏网