This is the 2475th most frequent Chinese word.
投诉
"投诉" means "to complain."
In this sentence, '投诉' is used as a verb meaning 'to file a complaint' regarding dissatisfaction.
我对产品的质量有些不满意，决定向厂家投诉。
I am somewhat dissatisfied with the quality of the product, so I decided to file a complaint with the manufacturer.
Here, '投诉' refers to the act of lodging a complaint, typically with an organization or service representative.
顾客可以通过客服热线进行投诉或者提出建议。
Customers can file complaints or offer suggestions through the customer service hotline.
In this example, '投诉' highlights the action of addressing a particular concern or dissatisfaction to a person in charge.