flagstone

(also flag) n flat piece of stone (usu square or oblong) for a floor, path or pavement 石板（通常为正方形或长方形, 用以铺室内地面、 小径或边道）.

flabbergast, flabbily, flabbiness, flabby, flaccid, flaccidity, flag, flag-day, flag-pole, flag-waving, flagellant, flagellate, flagellation, flagged, flagging, flagon, flagrant, flagrantly, flagship, flagstaff, flail, flair, flak, flak jacket, flake, flakiness, flaky, flambe, flamboyance, flamboyant, flamboyantly, flame, flame out, flame-thrower, flamenco, flaming, flamingo, flammability, flammable, flan,