balance of contract

例句：

1. 1.The scales of justice must be balanced in every case.
   正义的天平在每一个案件中都必须保持平衡。
2. 2.The two parties reached a balance after several rounds of negotiations.
   经过几轮谈判后，双方达成了平衡。
3. 3. The teacher tried to balance the class by giving each student equal opportunities.
   老师试图通过给每个学生均等的机会来平衡班级。