没有必要这样做。
If you use the tag, this is not needed.
如果使用标记，则不需要这样做。
他们根本没必要这么做。
A user name and password are usually not needed.
一般不需要用户名和口令。
Extra overhead that is not needed.
额外的开销是不必要的。
The event interface is not needed.
事件接口不需要选择。
A virgo will not stay where they are not needed.
处女座的人不会待在不需要他们的地方。
Your course books are not needed on the first day.
课本在开学第一天是根本不需要带的。
Since each file is read only once, caching is not needed.
由于每个文件只被读取一次，因此缓存完全没有必要。
In the previous example, this context is not needed.
前一范例中不需要此内容。
This can be very useful, but it is not needed in this case.
此属性会非常有用，但是在本例中不需要它。
You can also power down entire servers that are not needed.
还可以对不需要的服务器停止供电。
Always close the cylinder valve when product delivery is not needed.
当不需要产品输出时，总是关闭钢瓶阀门。
You can now stop the administrative server because it is not needed anymore.
现在可以停止管理服务器，因为已经不再需要它了。
It is not needed for the code to work properly, but it illustrates our point.
没有它代码也可以很好的工作，但是它阐明了我们的目的。
Of course, this is not needed, but is interesting, at least to developers.
当然，这些数据不是必需的，但是十分有趣，至少对于开发人员是这样。
Configuration is not needed in production procedure or after production.
无需生产配置或后生产配置。
Do not waste time giving details that are not needed to answer the question.
不要把时间浪费在回答问题时不需要的细节上。
This method is practical because the original length of individual bolt is not needed.
该方法无需预知螺栓的初始长度，更为实用。
This method is practical because the original length of individual bolt is not needed.
该方法无需预知螺栓的初始长度，更为实用。
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