n the act of making something futile and useless (as by routine)
v make vague or obscure or make (an image) less visible
v cut a girdle around so as to kill by interrupting the circulation of water and nutrients
v make vapid or deprive of spirit
v lessen the momentum or velocity of
v become lifeless, less lively, intense, or active; lose life, force, or vigor
v make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation
v convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil
s so lacking in interest as to cause mental weariness
n. 减弱, 消音材料