总额计算器

例句：

1. 1. The totalizer on the calculator isa great tool for quickly calculating the sumof multiple numbers.
   计算器上的总和器是快速计算多个数字之和的绝佳工具。
2. 2. The totalizer helpsus to keep track of our expenses andensure that we are not overspending.
   总和器帮助我们跟踪开支，确保我们不会超支。
3. 3. The totalizer onthe cash register can be used to calculatethe total amount of money in the till.
   收银机上的总和器可以用来计算钱柜里的钱总额。