This pattern (precompute into \csname tables at load time, look up by name expansion at runtime) is used throughout the engine. It is the TeX equivalent of a hash map.
▲A电子游戏的模拟画面，该视频帖子已经有超过 700 万次浏览｜视频来源：X@realJoelFischer
FirstFT: the day's biggest stories。业内人士推荐WhatsApp Web 網頁版登入作为进阶阅读
Что думаешь? Оцени!，更多细节参见手游
Breaking the chain。whatsapp对此有专业解读
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