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to complete the principal or hardest part of (a project, one's work, etc.

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https://medical-dictionary.thefreedictionary.com/back, Everybody yelled at him and laughed at him and sassed him, and he sassed, He crouched alongside of him, right arm drawn, So it was agreed that they would make a forced march, The other he tried to slip through hers; but she eluded him nimbly, and Frome's heart, which had swung out over a black void, trembled, Alleyne, staggering to the side, was about to hurl himself after him, but Hordle John dragged him, But he looked across a million years, at two mad creatures who had slipped the leach of the generations and who were, I know that since I have so humbly done thy bidding thou wilt carry me, He reached for me with his long arm, and his nails tore my flesh as I leaped, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Back & Rosta Information Security Consulting Ltd, back (someone or something) up to (something), Back and Forth Error Compensation and Correction.

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in one's absence; without one's knowledge; treacherously; secretly: I'd rather talk to him about it directly than discuss it behind his back. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, 'buckets': [{ addPrebidAdUnits(pbAdUnits); {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, googletag.pubads().enableSingleRequest(); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, addPrebidAdUnits(pbAdUnits); { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, to print a sheet again on its other side. "authorization": "https://dictionary.cambridge.org/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=back-to-back&v3=&v4=english&_=RANDOM",

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