The internal strength, external strength, soft strength and hard strength of traditional Wushu-what do they mean respectively?

Internal strength generally refers to the ability to use strength. People in China believe that there is a genuine qi in the human body, which usually spreads all over the body. If we can converge to one point, it will be more powerful. Of course, some people in modern martial arts think that internal work is a way of breathing, and controlling breathing can control strength.

External skill is also commonly known as Kung Fu, such as Shaolin Changquan, Tai Ji Chuan, Xingyiquan and Liuhe Quan.

Soft work is actually very simple, that is, bending over and splitting, dancing or gymnastics. Soft work is a compulsory course, and the most extreme form should be bone reduction.

To put it bluntly, effort is to break a big stone in the chest. Both inside and outside, of course. For example, armed police hit bricks with their fists, taekwondo and karate players split tiles with their bare hands, and so on;

I haven't heard of the rest. ...