cost audit

例句：

1. 1.The company conducted a cost audit to identify areas for cost reduction.
   公司进行了一次成本审计，以找出降低成本的领域。
2. 2. During the audit, the auditor reviewed all financial records and compared them with previous years' data.
   在审计期间，审计员审查了所有财务记录，并将其与前几年的数据进行了比较。
3. 3. The audit revealed that there were significant discrepancies in the budget allocations between departments.
   审计发现各部门预算分配存在显著差异。