joist

n one of the long thick pieces of wood or metal that are used to support a floor or ceiling in a building 搁栅; 托梁.

joggle, jogtrot, Johannes Brahms, john, John Bull, John Foster Dulles, John Major, johnny, Johnson, joie de vivre, join, join hands with, join in, join up, joiner, joinery, joint, joint venture, joint-stock company, jointly, joke, joker, jokey, jokingly, jollification, jollity, jolly, jolly-boat, jolt, jolty, Joneses, jonquil, Joseph, josh, joss-stick, jostle, jot, jot down, jotter, jottings,