These issues certainly require attention when developing the data model.
在开发数据模型时，肯定需要注意这些问题。
It'll arrange the events but require you to take appropriate action when needed.
机会是给了你，但有必要时你需要采取适当的行动。
In other cities, factories require employees to work at odd hours when electricity is available.
在其它城市，工厂要求员工在有电的休闲时间内工作。
Children require stimulating, supportive and nurturing care when their parents are not available.
父母不在身边的时候，儿童需要激励、支持性、培育性的关爱。
When analyzing the snapshot data, there are certain metrics that require special attention.
分析快照数据时，有一些度量标准需要特别注意。
When you require a more robust high availability environment.
当您需要一个更加健壮的高可用性环境时。
For instance, the decision of when (or even whether) to require passwords is a challenge.
例如，确定何时(或是否)需要密码就是一个挑战。
When group together, tasks require a lot less time, effort and concentration.
当归类到一起，任务就会更少花费你的时间、努力和专心。
Mary: When do you usually require the new employee to start?
玛丽：你们一般要求新员工什么时候人职呢？
Please dial "0" when you require our services. We are always happy to serve you.
当您需要酒店服务时，请直接拨打总机号码“0”，我们随时为您服务！
Most types require a type library when consumed by a COM application.
大多数类型在由COM应用程序使用时，都需要类型库。
When does it become a big enough problem to require professional help?
什么时候问题变得足够严重而需专业帮助。
When does it become a big enough problem to require professional help?
什么时候问题变得足够严重而需专业帮助。
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