他帶你走半個圈，你再帶他走下半個 He takes you halfway around, you take him through the rest

掤捋擠與掤捋按推手對練
Peng Lu Ji Vs Peng Lu An push hands exercise
Training moments with Master Charlie Chang recorded by Daniel Lee (李愷), 16 Jan 2009.
王氏水性太極拳拳架、技法、及應用，由張希榮師傅親述及示範。
Wang's Water Style Tai Chi Chuan forms, techniques, and applications as explained and demonstrated by Master Charlie Chang.