Air courses like classes. Harvard Encyclopedia English is taught by AI foreign teachers 1V4, and Harvard Encyclopedia is the main course in their family. In addition, there are MIT classes and nature spelling classes. It's really not bad, but AI is still not as smart as a real foreign teacher in class and can't solve the child's pronunciation problem in time! Suitable for basic children to attend classes.

Relatively speaking, I prefer this one. The foreign teachers in their family are all certified, and it is the only one in China that can check the qualifications of foreign teachers online. The price is very affordable. There are only 20-30 people in a class, mainly real foreign teachers teach online. Children have more opportunities to interact with foreign teachers, and the learning effect is guaranteed. The free trial version is here: link to the trial version.