an occurrence of control or strength weakening; "the relaxation of requirements"; "the loosening of his grip"; "the slackening of the wind" 規制の発生あるいは強度を弱める。
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【下位】 a relaxation or slackening of tensions or reserve; becoming less hostile; "the thaw between the United States and Russia has led to increased cooperation in world affairs" 緊張または制限が緩和されること、あるいはゆるむこと。あまり敵意がなくなること。
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