音标
英语音标：[dɪˈklaɪn]
美语音标：[dɪˈklaɪn]  

翻译
n.
(数量、价值、质量等的)减少，下降，衰落，衰退

v.
减少;下降;衰弱;衰退;谢绝;婉言拒绝;(根据名词、形容词或代词在句中的作用)变格，使发生词形变化

例句

An increase in cars has resulted in the decline of public transport. 

汽车的增加导致了公共交通的减少。

The new system may be more economic but will lead to a decline in programme quality. 

新系统可能更合算，但是会降低程序质量。

If children were made to feel inferior to other children their confidence declined. 

如果让孩子感觉他们不如其他孩子，他们的信心就会减弱。