Bukut has to demonstrate one sound at a time, getting the children to recognize the difference between throat and head-voice resonance and then slowly bringing children from the former to the latter.
馬彼得必須一個音、一個音示範，讓孩子分辨喉音、頭腔共鳴，再慢慢引導孩子由喉音轉換成頭腔共鳴。