重点讲解：
1. be full of
有大量…的；满是…的；
eg. His attic is full of treasures.
他的阁楼里面充满了宝贝。
eg. Yes, the sun does not always shine and life is sometimes full of sorrows.
是的，并不总是阳光照耀，生活有时是充满悲伤。
2. under one's belt
已经取得（或完成）；
eg. Clare is now a full-time author with six books, including four novels, under her belt.
克莱尔现在是全职作家，著有6本书，其中有4部小说。
eg. Not all b-school applicants are quant superstars with a few years of Wall Street experience under their belt.
并不是所有的商学院申请人都有丰富的华尔街工作经验。
3. make sth. clear
把…表达清楚；把…说明白；
eg. And as the customer preferred remaining silent on the matter, authorities have found it difficult to make things clear.
由于该名顾客对此事保持沉默，有关部门很难弄清事情。
eg. Before you go on a journey, you'd better make it clear how much money you are going to spend.
在外出旅行前，你最好先弄清楚你可能要花多少钱。
4. introduce oneself
自我介绍；
eg. Mr. tompkins felt he had better go cross and introduce himself.
汤普金斯觉得他最好过去并介绍一下他自己。
eg. The english teacher is asking her students to introduce themselves.
英语老师正在叫她的学生作自我介绍。
