 |
| 初级的: 28 phrases in 15 subjects |
| Agriculture | 1 |
| Bioenergy | 1 |
| Biology | 1 |
| Chemical fibers | 1 |
| China | 1 |
| Commerce | 1 |
| Economy | 2 |
| Environment | 3 |
| General | 4 |
| International trade | 1 |
| Research and development | 4 |
| Securities | 1 |
| Sociology | 1 |
| Space | 1 |
| Technology | 5 |
|
| 初级的: 28 phrases in 15 subjects |
| Agriculture | 1 |
| Bioenergy | 1 |
| Biology | 1 |
| Chemical fibers | 1 |
| China | 1 |
| Commerce | 1 |
| Economy | 2 |
| Environment | 3 |
| General | 4 |
| International trade | 1 |
| Research and development | 4 |
| Securities | 1 |
| Sociology | 1 |
| Space | 1 |
| Technology | 5 |