be disloyal to

例句：

1. 1. He was found to be disloyal to his boss, leading to his firing.
   他被发现对他的老板不忠诚，导致被解雇。
2. 2.The couple's marriage was disloyal to their children, causing tension between them.
   这对夫妇对他们的孩子不忠诚，导致他们之间产生了紧张关系。
3. 3.The company was accused of being disloyal to its employees, with low wages and poor benefits.
   该公司被指控对其员工不忠诚，工资低且福利差。