1. Thick walls deaden the noise from the street. 厚墙阻隔了街上传来的闹声(或噪音)
2. Conformity almost always leads to a deadening of individual creativity and energy. 一致性经常会减少个人的创造性和能量。
3. New to the flagship is a new form of sound deadening mat that has improved noise reducing properties and is lighter than conventional materials. 新的旗舰是一个消音垫的新形式，改善了性能和降低噪音比传统材料更轻的。
英英解释
n.
1. the act of making something futile and useless (as by routine)
2. so lacking in interest as to cause mental weariness
