英语词汇“be hard at it”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典-复社网

单词	be hard at it
释义	be hard at it freq. 1 spoken 1 专心致志于…,刻苦钻研
随便看	stratospheric balloon aerosol particle counter stratospheric chemical dynamics stratospheric chemistry stratospheric circulation stratospheric circulation index stratospheric cloud stratospheric coupling stratospheric disturbance stratospheric dynamics stratospheric fallout stratospheric fall out stratospheric model Stratospheric Observatory for Infrared Astronomy Stratospheric Observatory for Infrared Astronomy, SOFIA stratospheric ozone stratospheric ozone-depletion agent stratospheric polar vortex stratospheric pollutant stratospheric pollution stratospheric propagation stratospheric radiation stratospheric sounding unit stratospheric sounding unit (ssu) stratospheric steering stratospheric sudden warming

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