n.遲鈍；不清楚；單調(diào)；[醫(yī)]濁音
His dullness was due to lack of initiation. 他的遲鈍是由于缺乏內(nèi)行知識。
Mental dullness is prominent, and delirium may occur. 神志遲鈍加甚，且可發(fā)生譫妄。
