The EXTDESC keyword is not required.
EXTDESC 关键字不需要。
The reply message is not required.
回复消息不是必需的。
This behavior is not required, however.
然而，这些动作不是必需的。
The update is not required for this scenario.
本场景不需要该更新。
Processors are not required to support it.
没有要求处理程序一定支持它。
This is not required for those programs to run.
运行这些程序并不需要这样。
You are not required to do impossible things.
不会要求你去做不可能做的事情的。
An alias is not required, but can be helpful.
别名并不需要，但也可以是有益的。
Obviously, a DSL is not required in every case.
显然，并非每种情况下都需要DSL。
Confirmation of transfer orders is not required.
不需要对转储订单进行确认。
Knowledge of any of these is helpful, but not required.
了解这些当然很有帮助，但也不是必需的。
But perhaps a man is not required to bury himself.
但是人也许是用不到安葬自己的。
A rules table is not required for this clean type.
规则表不是这种清理类型所必需的。
Some spoken English is preferred, but not required.
一些英语口语是首选，但不是必需的。
This method is not required if your bean is very simple.
如果您的bean非常简单，那就不需要这个方法。
Knowledge of Web design is helpful, but not required.
如果您懂得Web设计知识将很有帮助，但这并不是必须的。
Some experience with Eclipse is helpful, but not required.
具有一些Eclipse方面的经验会有所帮助，但不是必需的。
This file is not required for the operation of the library.
库操作不需要这个文件。
A user name and a password are not required for this service.
该服务不需要用户名和密码。
Extra reading is permitted but not required for this paper.
这篇论文容许其他阅读资料，但并不是必需。
A specific style sheet is not required here so do not specify one.
这里不需要特定的样式表，所以不要指定样式表。
However, they are not required by law. Some basic rules include.
然而，他们并不是法定必需的。
In the us, companies are not required to disclose their energy use.
在美国，并没有要求公司公开各自的能源使用情况。
She also has personal wealth which she is not required to disclose.
同时她还有私房钱，法律并不要求她公开这些私人资产。
Note: You are not required to learn the IT software, however, to do this.
备注：以上操作并不需要您学习IT软件。
If a client already knows which service to use, this step is not required.
如果客户已经知道使用哪一个服务，则不需要这一步骤。
If a client already knows which service to use, this step is not required.
如果客户已经知道使用哪一个服务，则不需要这一步骤。
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