重点讲解：
1. embark on 着手；开始做；
Resolutely she left home to embark on a new life with the man she loved.
她毅然决然地离开了家，跟自己相爱的人一起生活。
2. be familiar with 熟悉；熟知；
Tom is quite familiar with the author.
汤姆很熟悉那位作家。
3. get rid of 摆脱；去除；消除；
You've got to get rid of your arrogant ways.
你这骄傲劲儿得好好改改。
4. be rich in 富含…的；含有大量…的；
The rock is rich in mineral salts.
该岩石中富含矿盐。