coa rank

例句：

1. 1. The company has set a new coa rank for its employees.
   该公司为员工设定了新的合同等级。
2. 2.The coa rank is determined by the level of experience and qualifications of the individual.
   合同等级是根据个人的经验水平和资格来确定的。
3. 3.The company's decision to raise the coa rank for certain positions was met with mixed reactions from employees.
   公司决定提高某些职位的合同等级，但员工的反响不一。