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来历不明

lái lì bù míng

4-character word Traditional 來歷不明

What 来历不明 means

1. idiomof unknown origin; of dubious background

The characters in 来历不明

• 来láito come; (used as a substitute for a more specific verb)…
• 历lìcalendar
• 不bùno; not so; (bound form) not; un-
• 明míngbright; opposite: dark 暗; (of meaning) clear