讲解：
the fabric (of sth)
(社会、机构等的)结构:
a trend which threatens the very fabric of society
威胁社会基本结构的趋势

gather momentum
推进力；动力；势头:
The fight for his release gathers momentum each day.
争取使他获释的斗争声势日益加强。

afford sth
买得起；(有时间)做,能做:
Can we afford a new car?
我们买得起一辆新车吗？

impact (of sth) (on sb / sth)
巨大影响；强大作用:
The report assesses the impact of AIDS on the gay community.
这个报告评估了艾滋病对同性恋群体的影响。

go about sth
着手做某事；开始做某事
You're not going about the job in the right way.
你做这事的方法不对。