Master Chen Zhonghua Online Lesson on Dec. 31, 2021 - Kelvin Ho

Increase speed in the same direction.

Six Sealing Four Closing - First break the elbow, if that fails, yank the whole arm off the shoulder.

Machine gun exercise - Twisting the towel

Do first 13 with speed, one move at a time.

When you practice intensively, don't go overboard. Take a break before continuing.