Blast sounds are some of the consonants that are relatively easy to learn. The clear consonants p, t, and k are easier to produce than the cloudy consonants l, d, and g. b and p are bilabial blasts, so the child closes his or her mouth, puffs up the cheeks, and then releases the lips prominently, and the airflow and p sounds come out of the mouth naturally. b and p are pronounced in exactly the same way. Since b is a cloudy consonant, the vocal folds have to vibrate at the same time when the lips are released and the airflow is ejected from the mouth. The t and d are lingual-dental blast sounds, the airflow should accumulate between the tongue body and palate oral cavity, after accumulating a certain pressure, the tongue tip suddenly releases, the t sound and airflow will be naturally issued from the tongue tip and upper front teeth. d sound learning is exactly the same as the t sound. The d sound is learned exactly the same as the t sound, except that the d sound is accompanied by vocal fold vibration. The k and g are posterior tongue blast sounds. The back part of the tongue is lifted up to contact with the soft palate to accumulate airflow in the pharynx. Some children cannot pronounce k and g, but t and d are used instead. At this time, you can let the child open the mouth slightly, with a tongue depressor will be the tip of the child’s tongue, let the child pronounce t, because the tip of the child’s tongue is pressed, only with the tongue root up, although the child wants to pronounce t, but the sound is k. Let the child repeatedly experience the feeling of tongue tip sound t and tongue root sound k, the patient will be able to gradually learn the k sound. With the k sound, the g is also easier to learn.