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as gathered from https://app.transifex.com/open-edx/edx-platform/dashboard/
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Language Name (Country)
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Language Code
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Completion %
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French (Canada)
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Spanish (Latin America)
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es-149
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Spanish (Spain)
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Mandarin
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Italian
...
Arabic
...
German
...
Portuguese (Portuagal)
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Russia
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Ukrainain
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Hindi
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Please refer the continuously updated table at https://openedx.atlassian.net/wiki/spaces/COMM/pages/3157524644/Translation+Working+Group#The-following-is-a-a-table-of-lanague-that-are-supporetd--last-updated
\uD83D\uDDE3 Discussion topics
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