14. as/so long as 只要
13. put up with… 忍受
12. make a difference 有影响;有关系
make no difference 对……没有影响;不重要
11. keep on 保持
10. build up 逐渐建立
9. as a result = in consequence 因此
as a result of =in consequence of 由于…的缘故
8. result in 导致..
result from 原因是..
7. a quantity of/quantities of + n. 大量的
6. be trapped in... 被困在……
5. a natural phenomenon 自然现象