Origin: Because it is impossible to fish and dry the net every day. It is impossible to repair the fishing net when fishing. It is also a saying that repairing fishing nets is something fishermen must do. Allusion: A farmer went fishing, basically fishing for three days and drying his net for two days, thus forming an allusion. Also tell others that we are taught to do things through this fable, and we must stick to it. We can't give up halfway, nor can we fish for three days and dry the net for two days. This is very casual. If this happens, it will always lead to failure. Only persistence can ultimately succeed. Just by habit.