Ministers have chosen to make savings predominantly off the back of low-income pupils in an education system that was already stacked against them.
这句话如何翻译？其中有什么搭配？
Ministers have chosen to make savings predominantly off the back of low-income pupils in an education system that was already stacked against them.
参考译文：部长们选择主要靠低收入学生来“节省”，而这一教育体系本已对他们不利。
重点单词和短语分析
choose to do sth 选择做某事
savings节省;节省
predominantlyadv. 占主导地位地; 显著地; 占优势地;
off从…（获得）
the back of low-income 低收入支撑/支持
in an education system在教育体系
stack against对…不利
