起初把头疼分成若干类别是有必要的。
It is necessary initially to classify the headaches into certain types.
带礼物是有必要的。
为你的朋友保守秘密是有必要的。
接受难过的感觉是生活的一部分对我们来说是有必要的。
It's necessary for us to accept sad feelings as part of life.
他说为了有一个更好的未来，学习一门外语对人们来说是有必要的。
He said a foreign language was necessary for a person to have a better future.
对过程中的实际表现和付出的努力给予具体表扬是有必要的。
It is necessary to provide specific praise about actual actions performed and efforts made in the process.
随着家庭规模的扩大，为养家糊口的人增加保险以保护其家属是有必要的。
As the family increases in size, it is essential to add more insurance on the breadwinner to protect the dependents.
这么做是有必要的。
许多人视奥巴马先生送更多美军到那儿为一种有必要的罪恶。
Many view Mr Obama’s plan to send more American forces there as a necessary evil.
适当的饮食管制是有必要的，可以让孩子吃得好，保持身体健康。
Some form of control may be necessary to help children eat well, maintain healthy weight, according to researchers.
攀高枝在过去女性不能接受教育、女性识字率低的时候是有必要的。
Marrying up was necessary in the past when women could not get an education and female literacy was low.
将活动及流程的业务观点与用于实现活动的技术想联合是有必要的。
It is essential to align the business view of activities and processes with the technology used to realize these activities.
这看起来有点像在搞平衡，但是对于有效的软件交付来说是有必要的。
This may seem like a bit of a balancing act, but it is necessary for effective software delivery.
由于无法在客户端完成这一任务，因此在服务器上进行验证是有必要的。
Since you can "t do this on the client side it is necessary to validate on the server."
无疑，在处理必须有效协作的分布的团队的时候，不同的实践是有必要的。
Clearly, different practices are necessary when dealing with distributed teams that must collaborate effectively.
对于页面动作，XML是有必要的，因为视图ID非常容易变化。
In the case of page actions, the XML is desirable since view IDs are volatile to change.
坦白的说，获取XML并将其写入文件算不上激动人心—不过这却是有必要的。
Frankly, taking XML and writing it to a file just isn't very exciting-but it is necessary.
为了使NMS适应不同组织对各种业务的需求，定制自动化工作流是有必要的。
Custom automated workflows are essential for adapting an NMS to the varying business requirements of different organizations.
我知道，有人主张，为了保障我们的安全，诸如水刑之类的残忍手段是有必要的。
I know some have argued that brutal methods like water-boarding were necessary to keep us safe.
当有必要的时候，潜艇会进入那个暗室，工人将水位降低，然后开始对潜艇进行维修。
When it was necessary, the submarine came inside that camera, workers lowered the water level and started the repairing of the submarine.
这种能力是有必要的，例如，当应用程序被阻塞时，管理员需要从队列移除不良消息。
This is necessary, for example, to remove a poison message from the queue when an application gets stuck.
Snyder：Jeff和我认为有必要的一件事是集群，但是可用性也是件大事。
Snyder: One thing that Jeff and I think is needed is clustering, but usability is big, too.
作为一个患者，我感到在一次次接触中，向我的医生一贯的呈现自己是有必要的。
As a consumer, I feel the need to present myself consistently, in contact after contact, to my treatment providers.
一旦工作完成，用运作职责和要执行的主要职能的定义来填充治理框架的骨架是有必要的。
Once that effort is completed, it is necessary to flesh out the skeleton of the governance framework with definitions of operational responsibilities and major functions that are performed.
这是在 <runlevel>已启动时， 在认为有必要的情况下执行的实际命令。
This is the actual command to execute if deems it necessary when <run level> has been initiated.
判断是否有必要的资源——比如一个被认可的合作伙伴——来协助你的组织实现公开源码软件。
Determine whether necessary resources — such as an approved partner — are available to assist your organization in implementing the open source software.
许多地方挤压预算是有必要的，但不是所有地方；总体来看，开支削减这么多这么早是有风险的。
In many places a budgetary squeeze is necessary, but not all; and, taken as a whole, cutting this much this early is a risk.
许多地方挤压预算是有必要的，但不是所有地方；总体来看，开支削减这么多这么早是有风险的。
In many places a budgetary squeeze is necessary, but not all; and, taken as a whole, cutting this much this early is a risk.
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