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1. | However, keep in mind that prototypes alone are rarely sufficient to communicate underlying patterns, |
| 不过一定要记住,不能只使用原型,因为仅仅用原型是不足以表达底层的模式风格、原则和基本原理,这些都是要和程序交流的很重要的内容。 |
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2. | information available for filtering (source and destination addresses and port numbers, for example) is rarely |
| 能够过滤的信息(例如源头和目的地地址和端口数目)常常是不够的。 |
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3. | It rarely changes and it is rarely sufficient to alleviate the constant hunger pains experienced by the |
| 这很难改变,而且不能解除孩子们持续饥饿的痛苦。 |
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