To chisel/work persistently
Keep fighting despite repeated setbacks.
As long as the kung fu is deep, the iron pestle is ground into a needle!
Plum blossom fragrance comes from bitter cold!
adamantine
Keep fighting despite repeated setbacks.
persistent
willpower
Resolute and decisive
willpower
firm
What are the sentences about training?
1, training, my understanding is that students can grow up and train people to experience besieged city!