词汇测验:

1. dubious

2. precipice

3. accolade

4. enervate

5. heterogeneous

6. viscous

7. acrimony

8. conflagration

9. refute

10. satiate

11. torpid

12. deprecate

13. conundrum

14. indefatigable

15. epitome

16. camaraderie

17. cadence

18. calamity

19. gratuitous

20. adulation

剩余时间： 200 秒