| 释义 |
joist [countable, usually plural] a long thick piece of wood or metal that is used for support under a floor or above a ceiling in a building搁栅；托梁◆lift any loose floorboards and inspect the joists.掀起任何松动的地板，查看搁栅。joist/dʒɔɪst ||; dʒɔɪst/noun [c] a long thick piece of wood or metal that is used to support a floor or ceiling in a building 托梁；桁 |