重点讲解：
1. think of
想到；想起；想出；
eg. She was pained to think of them still living such a miserable life.
想到他们还过着这样悲惨的生活，她心里很难受。
eg. He boggled at the thought of swimming in winter.
他想到要在冬天游泳就有些犹豫。
2. apart from
除…外（尚有）；此外；
eg. There are ten people in the queue apart from me.
除了我还有十个人在排队。
eg. Apart from financial cost, he needs plenty of time.
除了成本,他还需要很多时间。
3. add to
添加；增加；掺加；
eg. You can add ingredients to these desserts as they begin to set.
这些甜点开始凝固时就可以加入辅料了。
eg. To add spice to the debate, they disagreed about method and ideology.
他们在方法和观念上都持不同意见，这使辩论精彩了很多。
