pin down片语动词KK [pɪn daʊn] /pɪn daʊn/发音片语动词1确定、查明、说清可拆开Scientists still can't pin down the exact cause of the outbreak.科学家至今无法查明这次疫情的确切起因。2使明确表态、逼…说清楚可拆开I tried to pin him down to a specific delivery date.我试著逼他说定一个确切的交货日期。3按住、压住、制住可拆开Two officers pinned him down until backup arrived.两名警员把他按在地上,直到支援赶到。4牵制、困住可拆开Enemy fire pinned down the soldiers for several hours.敌军的火力把士兵们牵制了好几个小时。5别住、钉住、固定可拆开She pinned down the pattern before cutting the fabric.她把纸样别好后才裁布。用这个字练口说→