| 61. | In all the less controversial fields, like the study of cacti or termites or the mature of nebulae, the necessary method of study is to group the relevant material and to take note of all possible variant forms and conditions. |
| 在一切争议较小的领域里，如对仙人掌、白议或星云性质的研究，应采取的研究方法是。把有关各方面的材料汇集起来，同时注意任何可能出现的异常情况和条件
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| 62. | It was necessary first to arrive at that degree of sophistication where we no longer set our own belief against our neighbour's superstition. |
| 我们首先需要达到这样一种成熟的程度：不用自己的信仰去反对我们邻居的迷信。
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| 63. | It was necessary to recognize that these institutions which are based on the same premises, let us say the supernatural, must be considered together, our own among the rest. |
| 必须认识到，这些建立在相同前提基础上的风俗，暂且可以说是超自然的东西，必须放在一起加以考虑，我们自己的风俗和其他民族的风俗都在其中。
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| 64. | T should not be made larger than necessary since excessive erector damping causes the gyro to overshoot the vertical during erection.T |
| 也不应该做得比需要的更大，因为修正装置阻尼过大将使陀螺在修正过程中偏离垂线过多。
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| 65. | It is not only necessary that I pass, but pass well. |
| 我不但要考及格，还要考好。
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| 66. | From what has been discussed above, I am fully convinced that the leisure life-style is undergoing a decline with the progress of modern society, it is not necessary a bad thing. |
| 通过以上讨论，我完全相信，随着现代社会的进步，幽闲的生活方式正在消失并不是件坏事。
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| 67. | Work is more that a necessary for most human beings; it is the focus of their lives , the souece of their identity and creativity. |
| 对大多数人来说，工作不仅仅是一种必需，它还是 人们生活的焦点，是他们的个性和创造性的源泉。
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| 68. | Patience combined with diligence is necessary to success. |
| 耐心结合勤奋是成功所必需的。
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| 69. | Is it necessary for me to attend the meeting? |
| 我真的必须参加这个会议吗？
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| 70. | The necessary outcome of a war is a fall in production. |
| 战争带来的必然结果就是生产力下降。
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