重点讲解：
1. at first
最初；起初；开始时；
eg. At first, he seemed surprised by my questions.
起初，他似乎对我的问题感到惊讶。
eg. At first he refused to accept any responsibility but he ended up apologizing.
最初他拒不承认有任何责任，到头来还是道了歉。
2. meet one's needs
满足某人的需要；
eg. Maybe these will meet your needs.
这些或许会满足您的要求。
eg. Emotion is a kind of experience of attitude in terms of whether objective things meet one's needs.
情感是人对客观事物是否符合自己需要的态度的体验。
3. follow through
完成；进行到底；
eg. He decided to follow through the business first.
他决定先把这笔生意做完。
eg. David is determined to follow his plan through.
大卫决心把自己的计划贯彻到底。