balance with removable pan

例句：

1. 1. The scales of justice must balance the scalesof justice.
   正义的天平必须保持平衡。
2. 2. The two teams need to find abalance between offense and defense.
   两队需要找到进攻和防守之间的平衡。
3. 3. Theteacher balanced the class byassigning different tasks to eachstudent.
   老师通过分配不同的任务给每个学生来平衡班级。