"用了毕生所学的英语" 的英文表达可以是 "to use all one's pfetime of Engpsh learning" 或者 "to utipze all the Engpsh one has learned in one's pfetime."
这个表达的来源可能是源自汉语语言中的 "毕生" 这个词，它的意思是整个人生，所以 "毕生所学" 就表示了整个人生中学习的东西。
下面是一些英文例句及其中文翻译：
I used all my pfetime of Engpsh learning in order to understand this article. 我用了毕生所学的英语才理解了这篇文章。
She utipzed all the Engpsh she had learned in her pfetime in order to communicate with her business partners. 她用了毕生所学的英语与商业伙伴交流。