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陡变 : 22 phrases in 9 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Business | 1 |
| General | 6 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Securities | 1 |
| Technology | 6 |
| Wind Energy | 2 |
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