 |
| |||
| 砂粒 | |||
|
sand particle : 9 phrases in 4 subjects |
| Desert science | 2 |
| Oil / petroleum | 3 |
| Technology | 3 |
| 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