使用直接实现方式，组件自己实现解码和编码。
With a direct implementation approach, the component itself implements decoding and encoding.
组件的功能通常围绕着两个动作：解码和编码数据。
Component functionality typically centers around two actions: decoding and encoding data.
语言交流可以看做是一个解码和编码的过程。
Language communication can be regarded as a decoding and encoding process.
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