| 1. | Ignorance acts as a brake to progress. |
| 无知阻碍了进步。
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| 2. | Poverty and ignorance are the enemies of progress. |
| 贫穷和愚昧是进步的敌人。
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| 3. | That unfortunate remark exposed his ignorance of the subject. |
| 他说了那句不妥的话,暴露了自己对此事的无知。
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| 4. | What monumental ignorance ! |
| 真是无知之极！
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| 5. | Most racial discrimination is based on ignorance . |
| 种族歧视的产生大都出于无知。
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| 6. | We are in complete ignorance of your plans. |
| 我们对你的计画一无所知。
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| 7. | If he did wrong it was only through ignorance . |
| 要是他做错了,那也只是出于无知。
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| 8. | Pleading ignorance of the law won't help you if you are caught. |
| 假若因犯法被抓住,藉口不知是犯法亦无济于事。
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| 9. | She professed total ignorance of the matter. |
| 她自称对那事一无所知。
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| 10. | He could hardly veil his contempt at my ignorance . |
| 他掩盖不住对我无知的轻蔑之情。
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