Inguinales superficials hydroncus, the area of the germinal center reduces.

淋巴结周边水肿，淋巴小结心面积减少。

The issue of vocal cords vibrating in voice training is easy to lead to making voice dark,dry and coarse,raucity even caused pathological changes such as vocal cords polyp.

在声乐训实践,由于缺少对声带振动问题积极而细微感知和研究,从而了一系列诸如声音挤、卡、沙、抖、暗现象,乃至出现声带息肉、小结等病变,从而延长声乐训程。