1, /d/ Lips slightly parted. First, the tip of the tongue touches the gum, and then it suddenly opens, allowing air to rush out to form sound. The vocal cords must be vibrating.
2、/? /Lips slightly open, protruding forward, the tip of the tongue raised close to the upper gum, forcibly sending out breath, vibrating vocal cords.
3./p/ Close your lips tightly and let the airflow break through your lips and flow out.
4、/? /Lift your tongue, your lips are in a natural state, your mouth is half open and half closed, and you pronounce "E". It is the pronunciation of the letters a, o, u, e, or, er, ur in the word.
5、/? /The lips are flat, the front of the tongue is slightly raised, the tip of the tongue is pressed against the lower gum, the gum is opened, the soft palate is raised, and the lips are naturally opened. Pronunciation of the letter a in closed syllables or stressed closed syllables.
6./n/ The lips are slightly closed, the tip of the tongue is pressed against the upper gum, and the vocal cords vibrate, so that the airflow comes out of the nasal cavity.
Related information:
English stressed closed syllables are stressed syllables in closed syllables. The vowels in stressed closed syllables are not pronounced with their own letters, but with short vowels.
1) A vowel letter is followed by one or more consonants, and their syllables must be stressed syllables, such as: apple.
2) ending with a consonant, such as fish.
3) Vowel letters send short vowels.