2017公共英语三级冲刺500核心词汇（9）

1 objection

2 observe

3 obsolete

4 obvious

5 occur

6 offer

7 oil

8 opinion

9 opportunity

10 ordinary

11 orient

12 outside

13 overcome

14 oversea

15 overwhelming

16 parent

17 part

18 particular

19 passive

20 patient

21 percent

22 perfect

23 perform

24 personality

25 perspective

26 pessimism

27 petroleum

28 phenomenon

29 plan

30 plug

31 political

32 poll

33 popular

34 population

35 portion

36 positive

37 possess

38 potential

39 precaution

40 precise