✔ 最佳答案
got 是 get 的 past tense 和 past participle; gotten 是 get 的 past participle。
不過當用 have got 去代表 have (例如 I've got a million dollars) 或去代表 must (例如 I've got to go) 的時侯,就不能用 gotten。
當用作 get 的 past participle 時,got 和 gotten 都可以用。例子:[his marks has got better] 和 [his marks has gotten better] 都得;[his behaviour has got worse] 和 [his behaviour has gotten worse] 都得。不過個人總覺得 [gotten] 似乎比較 [got] 語氣畧有細微的重一些。
2009-07-13 06:11:31 補充:
To 003: It may help to look up the dictionary, e.g."
http://www.thefreedictionary.com/gotten", which defines gotten as "A past participle of get".