Add-on
01
附加组件, 扩展
a supplementary piece designed to enhance the performance or capability of an existing item
例子
He bought an add-on for his gaming console that allowed for better graphics performance.
他为他的游戏机买了一个附加组件，可以提供更好的图形性能。
02
附加组件, 扩展
a supplementary component that improves capability
03
插件, 扩展
a software module that extends or enhances the capabilities of an existing application
