51. | She recognized the potential for error in the method being used . |
| 她意识到在所采用的方法中可能出错。
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52. | The vaccine was used to protect the whole population against infection. |
| 这种疫苗用以为全体居民预防传染病。
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53. | Alcohol is used as a preservative in certain foods. |
| 酒精用作某些食物的保护剂。
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54. | She used a chisel to prise off the lid. |
| 她用錾子来把盖子凿开。
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55. | `Xerox' is a proprietary name and may not be used by other makers of photocopiers. |
| ‘施乐’为专利名称,制造复印机的其他厂家不得采用。
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56. | She resented the proprietorial way he used her car for trips about town. |
| 他把她的汽车当成自己的车在城里开着到处跑,她对此十分不满。
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57. | Props were used to prevent the roof collapsing. |
| 用了一些支柱以防止屋顶塌落。
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58. | He used a box to prop the door open. |
| 他用盒子顶住门,让门开着。
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59. | Life on a farm is a far cry from what I've been used to. |
| 农场生活与我已过惯的日子迥然不同。
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60. | The cinema she used to visit had been pulled down. |
| 她常去的那家电影院已经拆除了。
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