| 单词 | joist |
| 释义 | joist —joistless, adj. /joyst/, n. 1. any of a number of small, parallel beams of timber, steel, reinforced concrete, etc., for supporting floors, ceilings, or the like. v.t. 2. to furnish with or fix on joists. [1325-75; ME giste < OF < L *jacitum support, n. use of neut. of L jacitus (ptp. of jacere to lie), equiv. to jaci- var. s. + -tus ptp. suffix] |
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