II. Expressions
1. a good way to do sth
2. be aware of意识到(realize; sense) 
3. be similar to (be the same as)与…相似/类同
4. stand for = represent 代表
5. encourage sb. to do sth.鼓励某人做某事
6. be meant to do = be intended to do意旨做某事/ 目的是要做某事
7. be/get/become used to (doing) sth.习惯于（做）某事
8. do/make/conduct research on = research into对……进行研究
9. share sth.共享 share in sth.分享；分担 share out (平均)分配
10. believe in = have belief in; have faith in; trust信仰，信任
11. for free = free of charge; without payment免费
12. connect…with / to与…相连接 (be connected with与…有关=be linked/related to)
13. play tricks on = trick sb.捉弄，欺骗
14. since then；ever since; from then on自从那时起
15. deal with处理，打交道，对付
16. fall for上…当；受…骗，爱上了;迷上了
17. live / lead a …life = lead / live a life of + n.过着…的生活
18. be smart about对…精明
19. expository writing说明文   basic format基本格式
20. be supposed to be(be considered as/to be)认为是  
be supposed to do应当(=should; ought to)
21. offer sb. sth. (sth. to sb.) = supply sth. with sth.  offer to do sth.
22. be quite satisfied with = be pleased with = express one’s satisfaction with对…满意
23. trick sb. into doing sth.诱使某人做某事
24. as well = too; also也
25. feel like喜欢，想
26. be tired of 对…厌烦（be bored of）  be tired with由于…而疲苏
27. give examples举例
26. be available to对…来说有可能  be available for对…来说可利用
28. market research市场研究  
29. sales and marketing of the product产品销售和市场营销  market assistant营销助理
30. sales / marketing department销售/营销部门