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| 准备成本; 准备工作成本; 筹备费用; 预备成本 | |||
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| 准备成本; 预备成本 | |||
| 预备工作成本 | |||
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preparatory costs : 5 phrases in 3 subjects |
| Business | 1 |
| Economy | 3 |
| Shipbuilding | 1 |
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