It seems that Huaqi Online can provide a chapter of a course as a class every day, but I know that there are two modes of cooperation for Dutch Online. If you rent according to the number of accounts, all the courses provided by the platform are free. At present, there are more than 1600 courses, but account rental fees are charged according to different account packages. If you rent according to the number of courses, the account number is free and there is no limit on the number of accounts. You can consider making a choice as appropriate.