1. all the year round (一年到头)
2. be famous for (因...而著名)
3. a great deal of (大量)
4. natural gas (天然气)
5. make use of =to use (利用)
6. refer to (谈到、提及、有关)
7. a type of (一种类型的...)
8. clear up (整理、 收拾)
9. from time to time (有时、不时)
10. at the end (of...) (在...)尽头
11. drive away (把车)开走
12. generally speaking (一般地说)
13. struggle against (开展斗争反对...)
14. one third of (...的三分之一)
15. speak the same way (用相同的方式说话)