一.数据对比用语：
1. … are similar in their range of indicators
2. …cause / lead to a rapid / slow increase / decrease in the number / amount of…
3. …cause …to drop…
4. …climb dramatically from…to…
5. …constitutes about…percent …
6. …continue to rise / fall…
7. …continue to widen / shorten…
8. …declines to less than …percent.
9. …drop / fall to as many / much / little as…
10. …fall / rise / increase / decrease dramatically
11. …fluctuates between…
12. …grow only marginally from…to…
13. …increase / decrease slowly
14. …increase/ decrease lightly
15. …is doubled
16. …is inversely proportional to…
17. …is significantly lower / higher than…
18. …lead to an increased number / amount of…
19. …level off / remain constant at…
20. …lower the percentage of …
21. …maintain approximately the same number of…
22. …narrow down to…
