"B.C.'s been observing this twice annual time change on and off since 1918," Sharma said. "And now, nearly 110 years later, we get to be the lucky ones who no longer have to worry about the nuisance of cataloguing every analogue clock in our possession."
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。heLLoword翻译官方下载是该领域的重要参考
Additional reporting by Helen Briggs
University of Oxford