重点词汇 1
Word List 1 1
Word List 2 17
Word List 3 32
Word List 4 44
Word List 5 61
Word List 6 77
Word List 7 94
Word List 8 112
Word List9 129
Word List 10 143
Word List 11 159
Word List 12 175
Word List 13 191
Word List 14 208
Word List 15 225
认知词汇 239