nail down

verb

1. make final
put the last touches on
put into final form

e.g. let's finalize the proposal

Synonym: finalizefinalisesettle

2. define clearly

e.g. I cannot narrow down the rules for this game

Synonym: pin downpeg downnarrow downnarrowspecify

3. succeed in obtaining a position

e.g. He nailed down a spot at Harvard

Synonym: nailpeg

1. 弄清;确定
If you nail down something unknown or uncertain, you find out exactly what it is.

nail down的近义词

e.g. 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。

2. 确定(协议)
If you nail down an agreement, you manage to reach a firm agreement with a definite result.

e.g. The Secretary of State and his Russian counterpart met to try to nail down the elusive accord.
美国国务卿和俄罗斯外交部长进行了会晤，试图敲定这项难以达成的协议。

3. 钉牢;钉住
If you nail something down, you fix it firmly onto something.

e.g. Lay strips of 4mm ply over the mesh and nail these down with panel pins.
把4毫米厚的胶合板条铺在网子上，然后用镶板钉钉牢。

1. 用钉钉住：nail down to 束缚 | nail down 用钉钉住 | nail file 指甲锉

2.

2. 达成协议,做成生意：192. make both ends meet 收支平衡 | 193. nail down 达成协议,做成生意 | 194. another nail in your coffin 有害健康,危及生命的东西 coffin nail 香烟

3. nail down的解释

3. 明确,确定(做法、协议等)：multipolar world 多极世界 | nail down 明确,确定(做法、协议等) | neutrality 中立地位

4. 钉牢：nail cutters ==> 指甲剪 | nail down ==> 钉牢 | nail drawer ==> 拔钉钳