单词	plumb line
释义	plumb line noun A line with a plumb attached to it, used for finding the depth of water or determining the vertical on an upright surface.We did scramble out on one permanent pond with a view to testing the depth with a plumb line which was probably quite dangerous but you don't think of that at that age.... Draw a plumb line on the wall representing one side of the cabinet. There is a good chance that the corner is not plumb, so this process guarantees that you will be working from a plumb line.
随便看	window cleaner window dresser window dressing windowed window frame windowing window ledge windowless window of opportunity window of vulnerability windowpane windowpane flounder Window Rock Windows window seat window-shop window shopper window shopping windowsill Alforian alforja Alfred Alfredian Alfredian English Alfredo

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