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1. | As ships have to go for periodic refits, it would have been almost beyond our power to maintain a reasonable |
| 由于船舶需要定期检修,因此我们的力量很难维持海军优势所必需的适当余力。 |
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2. | My business has been through a bad patch recently and I have been unable to maintain a reasonable profit |
| 最近我的买卖经历了一段不景气的时光,我已不能保持适当的利润率。 |
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