n.减少；减轻；缓和；减少额；（尤指）减税额
Third, the costs of abatement are large. 第三，减少排放的代价是巨大的。
The abatement of the headache gave him a moment of rest. 头痛减轻给他片刻的休息。
He couldn't make any offers, for that might be pleaded in abatement of what damages a jury might be inclined to give. 他不能出什么主意，因为他们也许会利用他所出的主意来减轻陪审官所定的罚金。
