目标平台只是由一组表示待开发内容(也就是目标)的插件组成的。
The target platform is simply composed of a set of plug-ins that represents what you're developing against (i.e., targeting).
软件平台是由一组子系统和接口构成的一个通用基础架构，支撑相关产品在其上开发[4]。
A software platform is a set of subsystems and interfaces that form a common infrastructure on top of which a set of related products are developed [4].
工具包是一组 API 集，开发人员可以跨平台地使用。
The toolkits are a set of APIs that can be used cross-platform by developers.
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