 |
| |||
| usable material | |||
|
能用料 : 12 phrases in 11 subjects |
| Animal husbandry | 1 |
| Aviation | 1 |
| Bridge construction | 1 |
| Business | 1 |
| Ecology | 1 |
| Economy | 2 |
| Environment | 1 |
| Nautical | 1 |
| Plastics | 1 |
| Technology | 1 |
| United Nations | 1 |
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