 |
| |||
| Variazione a gradino | |||
| |||
| variazioni a gradino | |||
| step change: 4 phrases in 2 subjects |
| Energy industry | 1 |
| Nuclear physics | 3 |
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