Through the positioning training, Hei Ching built his conditional reaction. 通過定位實習，熹正從而建立內在的一套條件反射。
Hei Ching doing the positioning training, part 1 (Mar 18, 2017) 熹正實習著技術定位，第1節 (2017年3月18日)
Through the positioning training, Hei Ching built his conditional reaction. 通過定位實習，熹正從而建立內在的一套條件反射。
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