 |
| |||
| duration | |||
|
持续 期 间 : 14 phrases in 8 subjects |
| Agriculture | 1 |
| Business | 3 |
| Economy | 1 |
| Electronics | 3 |
| Metallurgy | 1 |
| Technology | 3 |
| United Nations | 1 |
| Water resources | 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