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| 物质生活 | |||
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material life : 10 phrases in 8 subjects |
| Automobiles | 1 |
| Business | 1 |
| Ecology | 1 |
| Economy | 2 |
| Environment | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 1 |
| Technology | 2 |
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