balance weight lever casting

例句：

1. 1.The scales must be balanced to ensure the weight is evenly distributed.
   秤必须平衡，以确保重量均匀分布。
2. 2. The teacher tried to balance the class by assigning different tasks to each student.
   老师试图通过分配不同的任务给每个学生来平衡班级。
3. 3.The chef carefully balanced the ingredients to achieve a perfect taste.
   厨师仔细平衡了食材，以获得完美的口感。