虽然古腾堡的印刷机已经存在了近一个世纪，但尚未广泛使用，而且拉皮在阅读抄本时，可能碰到过这一符号。
Although Gutenberg's press had existed for nearly a century, it was not yet in widespread use, and Lapi probably came across the symbol while reading a transcription.
英国手语是英国最发达和最广泛使用的符号语言形式。
British sign language is the most developed and widely used form of sign language used in Britain.
UML是一种统一的符号语言，是最广泛使用的面向对象系统的标准建模方法。
UML is a unified symbol language. It is a standard modeling method in the object-oriented system, and is the most widely used.
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