Wu sao will be described as protecting hand. It is the last line of defense in front of the body, before the attack reaches it.
encyclopaedie
The laan sao will be described as locking arm. It is used to free some space from the opponent in front of the body, to build up space in which...
Biu sao is a forwardly oriented movement, regularly used under the other arm as an emergency attack. It points towards the target one wants to...