重點講解：
1. be appointed to
被任命；
eg. She was appointed to a professorship in Economics at Princeton.
她獲聘為普林斯頓大學經濟學教授。
eg. He was appointed to the advisory committee last month.
他上個月獲任命為顧問委員會委員。
2. find out
（尤指特意通過努力）發現，找出，查明；
eg. He took a peep at the back of the book to find out the answers to the questions.
他偷偷看了一下書的后面，想找出那些問題的答案。
eg. We'd better find out how the land lies before taking any action.
我們最好把情況弄清楚再采取行動。
3. apologize to sb.
向某人道歉；
eg. It's imperative that you apologize to him immediately.
你必須立即向他道歉。
eg. He had the grace to apologize to me for the insulting remark.
由于說話失禮，他通情達理地向我道了歉。