nail down to

基本解釋

We shall have to nail him down to his promise.
我們將不得不迫使他履行自己的諾言。
dict.cn
She says she'll come, but I can't nail her down to a specific time.
她說要來，但我無法讓她敲定具躰什麼時候來。
One cable spelled out a deal that Turkey's leadership was trying to nail down to buy 16 Super Cobra helicopter gunships.
一份電報公佈了一項交易，土耳其領(lǐng)導人想對採購16架“超級眼鏡蛇”重型直陞機加以阻攔。
blog.sina.com.cn

Beijing is proving increasingly difficult to nail down on price thanks to its own eclectic sources of gas supply from Central Asia, Australia and its own domestic shale prospects.
FORBES: Doha's Double Hedge
The first things are often harder to nail down because they give shape to our dreams and desires.
FORBES: Success and Social Value: Do They Really Mix?
As yet, it is hard to nail down what all this amounts to.
ECONOMIST: A survey of Russia: A reconditioned model