Is it illegal for Dongying Vocational College to let students go to hotels for internship?

It's ok if it's voluntary. This internship must not be compulsory. Otherwise, it's illegal ... What major did you study ... Is it related to hotels? The school must have accepted the benefits of hotels, and then found a group of cheap laborers to send it there. I also went to school in Dongying, but I didn't work in the east. ...