谢絶的英文：
[Polite] to refuse; to decline; to say no (to sth.)

refuse是什么意思：
v. 拒绝；不肯；不愿
n. 废物，垃圾
adj. 无用的

refuse reclamation
垃圾回收; 废物再利用

You were quite right to refuse/in deciding to refuse/in your decision to refuse.
你予以拒绝[决定予以拒绝/予以拒绝的决定]是恰当的.

He who refuses nothing will soon have nothing to refuse.
对什么都不拒绝的人很快会没有东西可拒绝

decline是什么意思：
n. 下降；减少，衰退，衰落，最后部分；晚年，倾斜
v. 下降，下跌；减少；倾斜；婉拒；使降低，使变格

sink into a decline
开始衰落，衰弱下去，体力衰退

The population is on the decline.
人口在减少。

The decline of literature indicates the decline of a nation.
文学的衰落表明一个民族的衰落。