since you have identified yourself as a liar, why don't you complain to the education and training authorities? Or business administration complaints can also be done.

Actually, it's not difficult to learn these things now. The key is to develop your own unique recipes, such as why Chinese hamburger Fan's is delicious. It must have its own flavor, and it is not difficult to do it.

if you really want to join, you can talk to these old shops, and it's not difficult now.