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== Translingual == === Punctuation mark === # # (television) Encloses subtitled text that is sung or in a singsong intonation. Synonym: ♪ ♪ == Chinese == === Etymology === The matching pair was adopted because Chinese texts customarily do not use space to split words. === Punctuation mark === # # (Internet, Mainland China) Wraps a piece of text, indicating a hashtag on social media. #這是一個主題標簽# [MSC, trad.]#这是一个主题标签# [MSC, simp.]# zhè shì yī ge zhǔtí biāoqiān # [Pinyin]#ThisIsAHashtag