n.哑；无言；沉默
Dumbness,it feels the life of Jian and impermanency of people. 无言，感受剑的生命和人的短暂。
She replied after a meaningful dumbness. 她意味深长的沉默了一会儿才回答。
In particular, the dumbness would appear to be aggravated by stress. 特别是，压力会让沉默变得更为严重。
