| 词汇 | can't nail down |
| 释义 | (redirected from can't nail down)can't nail (something) downUnable to complete, do correctly, or be certain of some task or thing. I've been working on my speech for an hour, but I can't seem to nail it down. They couldn't nail down the terms of their agreement. I know I've heard this song before, but I can't quite nail it down. |
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