legitimate complaint

• 合法的申诉

legitimate complaint的用法和样例：

例句

1. The managing director will attend to your complaint personally.
   总经理将亲自处理你们的申诉。
2. She protested to the Advertising Standards Authority, who upheld her complaint.
   她向英国广告标准局提出抗议，而该局也同意这名观众的申诉。