| 单词 | step-board |
| 释义 | > as lemmasstep-board step-board n. the tread or flat part of a wooden step. ΘΚΠ society > inhabiting and dwelling > inhabited place > a building > parts of building > stairs > [noun] > step > tread tread1712 flat1793 step-board1823 treader1881 stair-tread1919 1823 P. Nicholson New Pract. Builder 191 Proceed with all the succeeding risers and step-boards until the winders are complete. < as lemmas |
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