Regarding the cost, different schools, teaching environments, teaching facilities and teaching quality are different, so there are differences in the cost, so it is not clear how much, only about how much, some thousands can also learn, and some hundreds of single items can also learn, so whether the cost includes ingredients, some include more tuition fees, and some do not include tuition fees. Of course, learning a trade can't just look at tuition fees, but the key is to be able to learn something.