Concat[S1: Literal[str], S2: Literal[str]]: concatenate two strings
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，这一点在体育直播中也有详细论述
Image by Mat Smith for Engadget，详情可参考heLLoword翻译官方下载
- Allow the user to specify the color of the icon and the color of the background (both hex and RGB)，详情可参考体育直播