As you move east, you encounter the Cyrillic alphabets, Hebrew and Arabic systems in the Middle East, and several Indic alphabets.
如果往东走,会遇到西里尔字母、希伯来和中东的阿拉伯语系,以及印度语。
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It is this proto-Sinaitic alphabet that really marks the starting point, the root of numerous modern-day alphabets, from Arabic and Hebrew to Greek and Latin.