重点讲解：
1. partake of
吃；喝；享用；
eg. They were happy to partake of our feast, but not to share our company.
他们喜欢享用我们准备的丰盛大餐，但是不喜欢和我们呆在一起。
eg. They invited us to partake of their simple meal.
他们邀请我们吃便饭。
2. write down
写下；记下；
eg. Children write down the word, cover it up and then try to spell it from memory.
孩子们把这个词写下来蒙住，然后试着凭记忆拼出来。
eg. He began to write down the thoughts that came into his head.
他开始写下头脑里出现的思想。
3. come up with
想出，提出（计划、想法等）；
eg. He came up with good ideas for the product promotion.
他想出一个推广产品的好方法。
eg. He could not come up with a proper answer.
他想不出一个合适的答案。