addition constant

例句：

1. 3.例句：1. The cost of the new product is an addition to our budget.
   新产品的成本是我们预算的一个增加。
2. 2. The company plans to add a new department to its workforce.
   公司计划在员工队伍中增加一个新的部门。
3. 3.The addition of this new ingredient will enhance the taste of the dish.
   这种新成分的加入将提升这道菜的味道。