词汇测验:

1. instigate

2. saccharine

3. anxiety

4. obscure

5. modulate

6. penurious

7. buffet

8. acquiesce

9. ecstatic

10. portent

11. frivolous

12. demagogue

13. morass

14. ascertain

15. interject

16. amenity

17. clandestine

18. solicitous

19. catalyze

20. palliate

剩余时间： 200 秒