"lever worked by foot," c. 1400, from Old English tredel "step, stair, sole of the foot," from tredan "to tread" (see tread (v.)) + instrumental suffix -el (1). Compare handle (n.).
雙語例句
1. She was working the treadle of her sewing - machine.
她正用腳踩動縫紉機的踏板.
來自《簡明英漢詞典》
2. Drag onto the page. Right - click to make a treadle, or to resize.