vt.\n使紧，使变紧，使绷紧(与up连用)：\nHe tightened up the rope a little.\n他把绳子绷紧了一些。\n使加强；使更严格(与up连用)：\nThe government tightened up economic controls.\n政府加紧了经济控制。\n使紧张(与up连用)：\nThe girl was tightened up inside.\n女孩内心感到紧张。\nvi.\n变紧，绷紧：\nMoney tightened after the war.\n战后银根紧了。\n(变得)更严格；更完善；加强：\nControls gradually tightened.\n控制渐渐加强。\n拉紧；绷紧；变紧张：\nmuscles tightening with fatigue\n因劳累而变得发紧的肌肉\n(身体某部位)产生憋闷感\n短语:\ntighten one's belt\n见 belt

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