请问这几个词的区别是什么?former,preceding,previous,past,prior我希望你说出来它们的微妙之处，例句我也会找，

看例句来理解会好一些
His former employer recommends him warmly.
他从前的雇主热心地推荐他.
the preceding page = the page preceding
前页
The price you offered is much above previous prices.
你们的报价比以前的高得多.
She is past her prime.
她的大好时光已经过去.
You need no prior knowledge to be able to do thistest.
不必预先学习,就能做这项测试.
我已经理解了