What should I do if my child is two years old and still not talking?

Patient's question:

A child who is two years old still never answers back, what should I do? About the previous treatment and effectiveness: No treatment, what kind of assistance do you want: I want to consult, how to treat, how will it affect the child in the future

Doctor's answer:

If possible, try to provide the baby with a monolingual environment. If that's not feasible, don't worry too much. He will still learn to speak and pick up several languages at the same time. Of course, the trade-off is that speech development may be delayed.
2. Regardless, actively encourage the baby to speak and give him plenty of opportunities to respond. Engage in conversations with clear, precise, and slow pronunciation, sing rhymes, and tell stories.
3. Respond promptly to the baby's words. Whenever he produces a correct sound, offer praise.
4. Teach the baby many words and explain the things around him anytime, anywhere, and repeatedly.