| 21. | A clear conscience is a sure card . |
| （谚）只要问心无愧即可安如泰山。
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| 22. | A birthday card usually has a suitable sentiment like " Happy Birthday " on it. |
| 生日卡上通常印有“生日快乐”一类合适的祝词。
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| 23. | card (s) sharks. |
| （口）玩纸牌老手；以赌纸牌行骗为生的人。
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| 24. | You may expect this ex-schoolteacher to speak by the card . |
| 你可以料想到这位前小学教员说起话来是字斟句酌。
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| 25. | Are you clever at card tricks? |
| 你擅长用纸牌变戏法吗？
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| 26. | The holder of the card is entitled to unlimited free use of the street railways of the city. |
| 持本卡者有权免费任意乘做本市有轨电车。
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| 27. | He came in fear and trembling to tell his father he had a bad report card . |
| 他忐忑不安地来告诉父亲，他的成绩报告单很糟糕。
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| 28. | I spent the whole day in my room, but I did not write a single card ! |
| 我在房间里关了整整一天。然而竟连一张明信片也没写成！
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| 29. | What's this card good for? |
| 这卡片有什么用?
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| 30. | He lost his credit card . |
| 他丢了信用卡。
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