v.减少;衰落;下降;衰退;婉拒;(单词)变格;
n.下降,减少;衰落;
例句:
Libraries are an investment for the future and they should not be allowed to fall into decline.
图书馆是对未来的一项投资,不应任其日趋萎缩。
You are just the person for the job. Don't decline out of modesty.
你做这工作再合适不过, 不要谦让了.
Meryl's health started a precipitous decline.
梅里尔的健康状况开始急剧下降。