We are providing solar PV system courses and Chinese language courses on Udemy. We are very glad that PV system courses are amongst the most popular for learners.
Regarding Chinese language lessons, what we have put here is just the video lessons. Our complete solution for learning Chinese language is all based on listening practice and you can check it on our website.
Major courses are:
Beginner Chinese Course. General Chinese Course. Business Chinese Course. Daily Chinese Course.
Other new courses recently added are for HSK characters and words based on the 2021 new requirements. Ready online from HSK1 to HSK4.
If you need any help or more details, feel free to send me a message.