重点讲解：
1. carry over
（使）延续；（使）延伸；推广到；
eg. Priestley's rational outlook in science carried over to religion.
普里斯特利在科学上的理性世界观延伸到了宗教思想上。
eg. Springs and wells were decorated, a custom which was carried over into Christian times in Europe.
泉眼和水井都进行装饰，这个习俗在欧洲一直延续到基督教时代。
2. from day to day
每天；天天；逐日；
eg. Your needs can differ from day to day.
你的需要每天可能都会不同。
eg. From day to day the town changes.
这座城镇的面貌天天在发生变化。
3. write off
勾销，注销（债务或已花费的款项）；
eg. The president persuaded the West to write off Polish debts.
总统说通西方免除波兰的债务。
eg. He had long since written off the money.
他很早就将那笔钱勾销了。
4. use up
耗尽；耗掉；
eg. That will use up a lot of time.
那会耗费很多时间。
eg. We can't use up all the natural energy and leaving nothing to our offspring.
我们不能用光所有的自然资，一点也不留给子孙后代。