 |
| |||
| steady gradient | |||
|
均坡 : 39 phrases in 6 subjects |
| Agriculture | 2 |
| Bridge construction | 4 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Hydroelectric power stations | 4 |
| Technology | 25 |
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