Teachers love using LearnCube because of its education-specific tools: the interactive whiteboard, lesson library, reports, etc.
However, in China (due to the Great Firewall) it may not be always possible to use LearnCube's embedded video/audio/chat.
At the time of writing, Zoom and We-Chat, do work fairly consistently in China assuming the person has a strong internet connection.
So for teaching students in China, combine Zoom/We-Chat (for video/audio/chat) with LearnCube's Whiteboard (for interaction, content and reporting).
Check out this step-by-step article on how to make this easy.