| 释义 |
nail down1.■用钉子钉住：The police broke up the window nailed down and rescued the boy from the fire.警察打碎了用钉子钉死的窗子，救出了大火中的男孩。2.■使明确表态；确切说明(或解释)：All of his answers didn't nail me down.他根本就没对我的提问做出明确回答。The police at last nailed down the traffic accident.最后，警方就那次交通事故做出了确切的说明。3.■使遵守诺言；使履行责任(或保证等)：I mentioned him to nail down his promise.我提醒他，叫他遵守自己的诺言。 |