One cable spelled out a deal that Turkey's leadership was trying to nail down to buy 16 Super Cobra helicopter gunships.

一份电报公布了一项交易，土耳其领导人想对采购16架“超级眼镜蛇”重型直升机加以阻拦。

youdao

She says she'll come, but I can't nail her down to a specific time.

她说要来，但我无法让她敲定具体什么时候来。

《牛津词典》

All the parties seem anxious to nail down a ceasefire.

各方面似乎都渴望将停火之事敲定。

《牛津词典》

There is no question that the blogosphere, fast-growing as it is, has yet to nail down one way to measure itself or gauge its activity.

WSJ: America's Newest Profession: Blogging – Mark Penn, WSJ.com

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?