我沒看到上下文，這么看來應(yīng)該是修飾cases的吧

肯定是three cases啊，好奇樓主的英語水平

cases = 復(fù)數(shù), 所以該用 that illustrate, 不該用 which illustrate

引用回帖:

6樓: Originally posted by Gilbert_Liu at 2019-04-08 08:05:41
這句有語法錯誤？加拿大人的文獻(xiàn)原文
...

嚴(yán)格來說是有錯, 但不要在意, 就像
  "Don't you know how to swim ?"
  "___, I don't know how to swim"
____ 內(nèi)填  "Yes" 中學(xué)老師就扣分, 但日常英語常聽到, 不那么明顯罷了

高中英語最終目標(biāo)是學(xué)改寫:
  The method's underlying principles can be illustrated quickly using three distinct examples
句意和你的完全相同, quickly 表示不提供推導(dǎo)

真正的關(guān)鍵是 distinct 的含意
  The method's underlying principles can be illustrated quickly using three examples, each distinct in its....
  The method's underlying principles can be illustrated quickly using three examples, each distinguished by its...
改寫方法很多, 最快的是介詞切換

附注: methods, eah... 即可, 不需 methods, each of which
，

引用回帖:

6樓: Originally posted by Gilbert_Liu at 2019-04-08 08:05:41
這句有語法錯誤？加拿大人的文獻(xiàn)原文
...

更正:

  examples, each... 即可, 不需 examples, each of which...