| Subject | English | Chinese simplified |
| comp., MS | base class library | 基类库 (A library that contains base classes) |
| comp., MS | class library | 类库 (A library of classes, interfaces, and value types that are included in .NET Framework. This library provides access to system functionality and is designed to be the foundation on which .NET Framework applications, components, and controls are built) |
| comp., MS | Microsoft Foundation Class Library | Microsoft 基础类库 (A library of C++ classes that forms an object-oriented wrapper around large portions of the Windows API and provides a framework on which to build applications) |
| comp., MS | .NET Framework class library | .NET Framework 类库 (A library of classes, interfaces, and value types that are included in .NET Framework. This library provides access to system functionality and is designed to be the foundation on which .NET Framework applications, components, and controls are built) |