求翻译：d 出示d的图片。找一个马跑的声音给学生听,教师示范读音。类似英语中s后面的t，study。舌尖抵住上牙床，突然放开，不吐气。用手势教发音位置。再跟读、齐读、个别读。是什么意思？

d to produce the picture of the d. Looking for a horse to run the sound to the students listen, teacher demonstration pronunciation. S behind t, similar to the English study. The tip of the tongue against the upper gums, suddenly let go, do not exhale. Using gestures to teach pronunciation location.

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d shows d the picture.Asks Ma Pao the sound to listen to the student, the teacher demonstrates the pronunciation.In similar English behind s t, study.The tip of tongue resists the upper gums, lets loose suddenly, does not aspirate.Teaches with the hand signal to pronounce the position.Again with rea

D d produced pictures. Looking for a voice for students to hear the horses, teachers model the pronunciation. Similar to the s in the English later t,study. The tongue against the upper gums, suddenly let go, not breathes out. Use gestures to teach pronunciation. Then follow, align, individual readi

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