totalling

例句：

1. 1. The total number of students in the class is 30.
   班上学生总数是30人。
2. 2.We need to total all the expenses before we can start planning our budget.
   在开始规划预算之前，我们需要将所有的开支加起来。
3. 3.The totalling of the accounts will be done by the end of next week.
   下周结束时将完成所有账目的汇总。