8.3 Alveolar Fricatives /s，z/圖片（共2張） :

        Producing /s/1) Raise the front part of the tongue toward the frontpart of the hard palate,but do not touch it;2) Place the sides of the tongue against the upper teeth;3) Be sure there is a narrow groove along the center ofthe tongue. The airstream escape......（本文共 9370 字, 2 張圖）     [閱讀本文] >>