Abdominal tremolo has been called another name of air tremolo for it produce sound wave by alternation rule of strong air and weak air, the vibration of abdominal muscle and diaphragm.是什么意思_Abdominal tremolo has been called another name of air tremolo for it produce sound wave by alternation rule of strong air and weak air, the vibration of abdominal muscle and diaphragm.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句