投诉 tóusù to lodge a complaint
怎么记住“投诉”: 投 to pitch + 诉 tell = to lodge a complaint.
汉字
用法
- To lodge a complaint (formally, as a customer/citizen): 向公司投诉 (xiàng gōngsī tóusù) to complain to the company, 投诉电话 (complaint hotline).
- Formal grievance channel - to a business, authority, or platform.
- Distinguish from 抱怨 (bàoyuàn, to complain/grumble informally); 投诉 is an official complaint seeking redress.