nail down的音标

Will you nail down that loose board in the floor?请把那块松动的地板钉牢好 吗 ?It would be useful if you could nail down the source of this tension.如果你能弄清这种紧张的根源，将会大有益处。It took the negotiators ten hours to nail down a deal.参加协商的人花了十个小...

用钉子钉住（某物），迫使（某人）作出决定，讲明意图[采取行动]，钉牢...