1. that is to say 也就是说
2. in need of 需要
3. have positive effects on 对…有积极影响
4. current affairs 时事
5. travel package 包价旅游
6. turn to 求助于
7. all sorts of 各式各样
8. in fact 事实上
9. spend…(in) doing 花费…做…
10. be/get/become addicted to 上瘾；沉溺于
11. be/get/become/grow accustomed to 习惯于
12. worn out 筋疲力尽
13. more than + mum. = over  ~ ~ + n. = not only   ~ ~ + adj. = very much
14. in advance 提前
15. keepp in mind 记住，牢记
16. be happy with 对…满意   be happy about 对…高兴
17. be popular with = have popularity with 受欢迎
18. on that basis 在此基础上
19. other than 除…以外 = apart from;
20. be divided into 被分为…  be separated from   be separated into
21. take into consideration 考虑  give thought to