In the production of a consonant sound, the air stream from the lungs meets noobstruction of any kind in the throat, the nose, or the mouth, while in the pronunciationof a vowel, the air stream from the lungs is obstructed in one way or another. () .
出自:伊犁师范-英语语音

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块