From a military point of view, before the Japanese attacked China, China fought a warlord war for decades. Too many people died, and China was weakened. After the Kuomintang unified China, China began to recover slowly. At this time, it's time to recuperate. The people of China and China are planning peaceful development, and they lack the awareness and preparation for foreign wars. However, many years ago, Japan was ready to change its war of aggression against China, so it was well prepared. Junior high school and senior high school are all fighting classes, so the fighting quality is very high and the personal fighting ability is very strong.
In addition to the above reasons, the most important thing in China is that Chiang Kai-shek put the main force and elite soldiers on the suppression of * * *, so after the Japanese attacked China, they quickly occupied many territories in Upper China, but many soldiers who fought with them did not have much combat experience and the quality of individual combat was not good. And most of the troops died after fighting with the * * * production party. Later, Chiang Kai-shek deployed troops in War of Resistance against Japanese Aggression to resist Japan, but the main goal was Zhong * *.
But if you look back, Japan's territory will be small and its stamina will be insufficient. By the end of the second half of 1937, it began to decline, while China became stronger and stronger, and individual combat became higher and higher, so that China gradually gained the upper hand.
Another thing to note is that kungfu pays attention to speed, accuracy, cruelty and poison, and it pays attention to knocking down opponents. There are too many restrictions among the people, but there are no such restrictions in the army. So what you said about fighting with a knife is just the early stage. In the later period, China's soldiers were no worse than those old Japanese soldiers. If you believe in Wang, you can look at history instead of thinking that it is just a one-sided description of TV series.