... 不可抗力force majeure 不可预见费unpredicted expenses; contingency (fund) 不燃材料non-flammable materials ...
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unpredicted expenses
出乎意料的费用
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The International Space Station was originally scheduled for completion in 2006, but unpredicted expenses created major delays.
VOA: standard.2009.11.30
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