词库 词数 掌握
BEC public
2761
CET-4 public
2606
CET-6 public
2342
GMAT public
3003
GRE public
8060
IELTS public
9325
850
818
1016
740
PET public
1465
TEM-4 public
4012
TEM-8 public
7522
TOEFL public
4240
TOEIC public
1632
6659
4083