These packages provide additional domain-specific features of the Androidplatform. They are not necessary for basic application development.

这些包为Android平台提供额外的与特定领域有关的特性，开发基本的应用程序不需要它们。

youdao

This is the set of facilities that provides users and IBM Support with an insight into the runtime that is necessary for basic problem determination.

这一工具集向用户和IBM Support提供深入了解运行时的能力，这种能力在确定基本问题时是必需的。

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This creates a problem for the basic running of the hospital: without the necessary materials, how can you save lives?

这对医院的基本运转造成了问题：没有必要的材料，你怎么能够拯救生命？

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We learn where scientists found one of the basic substances necessary for life.

VOA: special.2009.09.30

No tip is necessary for basic information like a restaurant recommendation.

FORBES: Plane Jane: Travel For Business Like A Pro

Before that, what most ordinary Iraqis want is a return to order and the resumption of basic services necessary for them to put their lives back together.

ECONOMIST: Looking to a new Iraq | The

This video shows some of the practical outcomes of the global People and Plants Initiative for field conservation, starting with botanical inventory as one of the most basic, yet most necessary, steps for conservation and resource management.

UNESCO: Natural Sciences