| 单词 | nail down |
| 释义 | nail downphrasal verb nailed down; nailing down; nails down 1 : to make (something, such as a victory) certain to happen They need to score another touchdown to nail down the victory. 2 : to find out or identify (something) exactly Her doctors haven't yet been able to nail down a diagnosis. They're trying to nail down the cause of our network problems. 3 : to make (something) definite or final nail down a decision |
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