1. "I know you must be very busy recently. You must take care of yourself and don't work too hard. I will always be here to support you and look forward to our next exchange. "
2. "Seeing your busy videos, I can feel your efforts and efforts. I admire you for being a hard worker. I hope you can take time off and take care of yourself when you are free. "
Seeing you work so hard, I know that you are a responsible and diligent person, which makes me appreciate it. Remember, don't overwork and take care of yourself. I look forward to our next meeting. "
These replies all express their concern, support and respect for each other, but they also imply that they hope to keep in touch and look forward to the next exchange.