短语词组短語gravelly stake 碎石樁gravelly clay 礫質粘土Gravelly Interlayer 碎石過渡層gravelly soils 碎石上gravelly soil 礫土；礫石土gravelly bed 礫石河牀gravelly ground 礫石地gravelly loam 礫質壤土gravelly limestone 礫狀石灰巖 返回 gravelly