риф: 108 phrases in 13 subjects |
Environment | 3 |
General | 12 |
Geography | 1 |
Geology | 63 |
Hydraulic engineering | 1 |
Music | 1 |
Name of organization | 1 |
Natural resourses and wildlife conservation | 1 |
Nautical | 3 |
Oil and gas technology | 10 |
Sailing | 5 |
Technology | 4 |
United Nations | 3 |