解夢是一件非常複雜的事。(翻成英文)

「解夢是一件非常複雜的事。若非有特殊天賦，通常都需要有豐富的人生經驗和長期的練習來做後盾。但結果也不一定能夠百分之百正確。」
Inconceivably perplexing and unless blessed with a gift, dream interpretation entails, yet not guaranteed for precision by, sophisticated life experience and long-term practice.

河豚的存在還真是格格不入呀！= - =

再給您一個版本參考：

「解夢是一件非常複雜的事。若非有特殊天賦，通常都需要有豐富的人生經驗和長期的練習來做後盾。但結果也不一定能夠百分之百正確。」


Interpreting dreams is an intricate matter. Unless one is extraordinary gifted, rich life experiences and extensive practices are often required. Even so, the results are by no means guaranteed.

either......or......
應該是二選一的概念吧!

Dream is a very complex thing. Unless you have a specific talent, usually needs to have a wealth of life experience and a long period of practice behind it. But the results also may not be able to fully correct.

解夢是一件非常複雜的事。若非有特殊天賦，通常都需要有豐富的人生經驗和長期的練習來做後盾。但結果也不一定能夠百分之百正確。

Oneiromancy is something very complicated. It requires to be backed
up either by a special gift or with abundant experience of life plus
persistent practice, yet it is not assured completely correct.



2013-02-05 11:36:00 補充：
沒錯, 「若非有.....通常都需要有....」正是是二選一的概念.