| 单词 | plumb line |
| 释义 | plumb lineWord family nounplumbateplumberplumberyplumbingplumbismplumbisolvencyplumbiteplumbumplumb lineplumbadjectiveplumbeousplumbicplumbiferousplumbisolventplumblessplumbous Tools ˈplumb line noun [countableC] TZa piece of string with a small heavy object tied to one end, used for measuring the depth of water, or for checking whether something such as a wall is built exactly upright 铅垂线，垂直线 Examples from the Corpus plumb line• If any walls appear to lean, check by going back to the nearest upper window and drop a plumb line down.• But again, as with the lintels, the union did not allow the bricklayers to use a plumb line. |
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