重點講解：
1. from scratch
從零開始；從頭做起；白手起家；
eg. He lost all his money and had to start again completely from scratch.
他損失了所有的錢，只好再從頭做起。
eg. One can hardly believe that this paper mill was started from scratch only a few years ago.
很難相信這個造紙廠僅僅是在幾年前白手起家辦起來的。
eg. There were so many spelling mistakes, I had to write the letter out again from scratch.
這封信的拼寫錯誤太多，我得重寫一遍。
2. would-be
adj. 想要成為…的；
eg. Follow after truth if you would be a man.
做一個男子漢就要追求真理。
eg. He said I would be a lawyer and it has come true.
他說我會成為一名律師，現在已經實現了。