There are too many softwares running in the background, which makes other softwares unable to run normally. The network connection is unstable. You can add a network connection and try again after the network connection. Maybe it's the website. You can close it and re-enter the website.
Cheese Network relies on core technologies and professional teaching and research, combined with big data analysis, deeply cultivates English classroom teaching, pays attention to subject accomplishment, and takes original teaching content as the carrier to realize multi-role application throughout lesson preparation, oral English, practice, test and evaluation.