Today's Sentence
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See, in big industrial cities like London, Birmingham and Manchester, Knocker Uppers used poles to reach the windows.
Original Video:
Before Alarm Clocks, There Were ‘Knocker-Uppers’
Key Vocabulary
4. effective
effective
[ɪˋfɛktɪv] (adj.)
effectively
[ɪˋfɛktɪvlɪ] (adv.)
cost-effective
[kɔst ɪˋfɛktɪv] (adj.)
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