Consonant sounds can also be made when two organs of speech in the mouth are brought close together so that the air is pushed out between them, causing __________.
出自:信阳师范学院英语汉语学

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