 |
| |||
| local telephone system | |||
|
市话系统 : 12 phrases in 3 subjects |
| Business | 2 |
| Electronics | 4 |
| Telecommunications | 6 |
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