 |
| |||
| 介质试验 | |||
| medium test: 15 phrases in 7 subjects |
| Aviation | 4 |
| Dermatology | 1 |
| Electric machinery | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 4 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips