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n. 衰退, 跌落, 下降
vt. 使降低, 婉谢
vi. 下降, 衰落, 偏斜
【医】 衰退, 减退, 衰退期(人), 减退期(病)
【经】 下降, 递减; 下跌

decline an offer
拒绝请求
decline an invitation
谢绝邀请
decline to answer a question
拒绝回答问题
the decline of the Roman Empire
罗马帝国的衰亡
fall into a decline
开始衰落, 衰弱下去; 体力衰退(尤指因患肺病而衰弱)
sink into a decline
开始衰落, 衰弱下去; 体力衰退(尤指因患肺病而衰弱)
on the decline
走下坡路, 在衰退中
the decline of life
晚年, 暮年
autumn decline
秋衰, 秋落
citrus decline
柑桔衰退病
harmonic decline
谐和衰减
hyperbolic decline
双曲型衰减
technical decline
由市场供求等内部因素引起的跌价
decline in production
生产衰退

His health is -ning.
他的健康日渐衰退。
They wish that prices would decline.
他们希望物价能下降。
The arts of China have not declined in spite of Western influence.
虽有西方影响, 中国的古老艺术并未因此而衰落。
The price of 14 inches TV set declined from 400 to 320 yuan each. 14
英寸的电视机每台从400元降到320元。

citrus decline decline penalty hyperbolic decline decline draft harmonic decline technical decline decline phase autumn decline decline with thanks sink into a decline decline all responsibility for sharp decline decline phases decline curve decline stage slow decline variety decline correlated decline final decline response decline