| 知识点（KP） | 句酷综合英语 | 中国学生作文 |
| amn. + system | 2314.43 | 1567.60 |
| von. + system | 695.99 | 660.72 |
| system | 4667.18 | 4612.12 |
| system/bit | 35.02 | 51.82 |
| system/lex | 6015.65 | 4923.05 |
| system/n | 5988.72 | 4910.09 |
| system/np | 38.05 | 64.78 |
| 名词 system | 3695.42 | 3342.49 |
| system/pos | 5988.72 | 4910.09 |
| system/ske | 17.51 | 25.91 |