knot·hole 
(nŏthōl′)
(nŏthōl′)n.
A hole in a piece of lumber where a knot has dropped out or been removed.
| 单词 | knothole |
| 释义 | knot·hole (nŏthōl′)n. A hole in a piece of lumber where a knot has dropped out or been removed. |
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