知识贝壳
知识贝壳
所属栏目：英语语音
Producing /θ/1) Place the tip of the tongue close to the upper teeth;2) Hold the lips slightly open;3) Breathe out the air through the narrow passage,makinga voiceless continuant;4) Do not vibrate the vocal folds.Producing /&240;/1) This sound is produced ......（本文共 6968 字 , 2 张图） [阅读本文] >>