If a person's ability to express and understand is poor, how should he change it?

Poor expression ability and poor understanding ability. Speak more, watch more and listen more. Talk more when chatting with others, and your expressive ability will be good, and improving your expressive ability is an important factor to improve your eloquence. Read more books in peacetime. Books can teach you how to chat with people correctly and enhance your connotation. When chatting with others, people think your speech is meaningful, so what you say is easy to be accepted.