21. | He has a double function to perform. |
| 他有双重职责要履行。
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22. | Every component of an aircraft has a specifiable function to perform. |
| 飞机上的任何一个部件都有具体明确的功能。
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23. | What is the true function of education? |
| 教育的真正作用是什么?
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24. | It has another vital function to perform. |
| 它还要起另外一个重要作用。
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25. | Punctuation has for its primary function the displaying of grammatical structure. |
| 标点的主要作用是显示语法结构。
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26. | The function of the ear is to listen. |
| 耳的功能是听。
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27. | One of the older students can function as teacher. |
| 可以让一个年龄稍大些的学生当教师。
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28. | It is fairly clear that sleeping period must have some function , and because there is so much of it the function would seem to be important. |
| 很清楚,睡眠必然具有某种作用。睡眠占去那么多时间,所以其作用似乎还是很重要。
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29. | The body's tissues are self-repairing and self-restoring to a degree, and function best when more or less continuously active. |
| 人体组织在一定程度上有自我修补和自我恢复的能力,有张有弛地连续活动时,其功能最佳。
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30. | The internal partition function is frequently simply called the partition function or also the state sum. |
| 内配分函数往往简称配分函数,也可称为态和。
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