 |
| |||
| material accumulation | |||
| 物质累积: 8 phrases in 6 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Environment | 1 |
| Technology | 3 |
| Water resources | 1 |
|
| |||
| material accumulation | |||
| 物质累积: 8 phrases in 6 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Environment | 1 |
| Technology | 3 |
| Water resources | 1 |