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| 时时; 常常 | |||
| at moments: 50 phrases in 11 subjects |
| Agriculture | 1 |
| Bridge construction | 1 |
| Business | 1 |
| China | 1 |
| Economy | 3 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 26 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Technology | 12 |
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