The use of his right index finger points to first-and at the same time using his right hand thumb Boxian, and then released right index finger and produce a low hook-pitch.是什么意思_The use of his right index finger points to first-and at the same time using his right hand thumb Boxian, and then released right index finger and produce a low hook-pitch.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句