2. Temperance : Eat not to dullness and drink not to elevation. 节制：不要吃得像个傻瓜，也不要喝的飘飘然。
3. He is not only dull in himself, but the cause of dullness in others. (Samuel Foote). 他不仅仅是自己愚蠢，而且是引起他人愚蠢的原因。（塞缪尔·福特）。
英英解释
n.
1. the quality of being slow to understand
2. the quality of lacking interestingness
3. a lack of visual brightness
4. lack of sensibility
5. without sharpness or clearness of edge or point
