 |
|
об'єднаний : 13 phrases in 7 subjects |
| Airports and air traffic control | 2 |
| Aviation | 1 |
| Chemistry | 3 |
| Communications | 1 |
| Environment | 3 |
| Logic | 1 |
| Microsoft | 2 |
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