 |
| |||
| 方孔 | |||
|
square hole : 12 phrases in 4 subjects |
| Agriculture | 1 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Oil / petroleum | 1 |
| Technology | 7 |
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