大家都搜：
四音节
1、Tone distributions in disyllabic, trisyllable and quadrisyllabic words produce their rhythm, it seems that the vibration frequency of vocal cords goes slow gradually in general situation.
2、The difference in the trisyllabic, quadrisyllabic and pentasyllabic residential names in the 3 cities of Beijing, Shanghai and Guangzhou are mainly shown in the pauses of the pentasyllables.