| 单词 | joist |
| 释义 | Word Frequency joist(dʒɔɪst) noun 1. a beam made of timber, steel, or reinforced concrete, used in the construction of floors, roofs, etc See also rolled-steel joist verb 2. (transitive) to construct (a floor, roof, etc) with joists Word origin C14: from Old French giste beam supporting a bridge, from Vulgar Latin jacitum (unattested) support, from jacēre to lie |
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