Today's Sentence
Video not in English?"OK" actually traces back to an 1830s fad of intentionally misspelling abbreviations.
Original Video:Why we say "OK"?
Key Vocabulary
1. abbreviation
abbreviation
[əˌbriː.viˈeɪ.ʃən](n.)
Let's challenge!
[əˌbriː.viˈeɪ.ʃən](n.)
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