51. | a stringent rule . |
| 严格的规定。
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52. | the thumb rule [the rule of thumb]. |
| 单凭经验来做的方法;比较粗糙的方法;约略的衡量[估计]。
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53. | The rule is by no means universal. |
| 这绝不是普遍规则。
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54. | a wise rule . |
| 明智的规定。
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55. | according to the rule laid down. |
| 按照已制定的规则。
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56. | as a rule . |
| 通常,一般来说。
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57. | As a rule I home by seven o'clock. |
| 我通常在7点钟以前到家。
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58. | As a rule of thumb ,the bigger the company the easy - ire it is to buy and sell. |
| 任经验来说,公司越大,做买卖越容易。
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59. | by rule . |
| 按照规则;墨守成规地。
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60. | do everything by rule . |
| 事事墨守成规。
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