 |
| |||
| backstep sequence | |||
|
后退法 : 14 phrases in 5 subjects |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Marketing | 1 |
| Oil / petroleum | 2 |
| Technology | 8 |
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