The customer complained that the extra shipping fee on her invoice was completely unjustified.

這位顧客抱怨她發票上的額外運費完全不合理。

Several employees felt the manager's decision to cancel their bonuses was unjustified.

幾位員工覺得經理取消他們獎金的決定是不正當的。

The auditor flagged three unjustified expenses in the travel report submitted last month.

稽核人員在上個月提交的差旅報告中標出了三筆不當支出。