checkboard

例句：

1. 1. The teacher drew a checkboard on the blackboard to help us learn numbers.
   老师在黑板上画了一个棋盘，帮助我们学习数字。
2. 2.The children were playing with their checkboards when the phone rang.
   孩子们正在用他们的棋盘玩耍，这时电话响了。
3. 3.She was using her checkboard to plan her next project.
   她正在用她的棋盘来规划她的下一个项目。